which compound has the highest mass percent ss

For each element, the mass percent formula is: % mass = (mass of element in 1 mole of the compound) / (molar mass of the compound) x 100%, mass percent = (mass of solute / mass of solution) x 100%. That's why pennies made before 1982 with mainly copper (except the 1943 penny) are relatively safe to swallow. The wiping cloths can be laundered in the mechanical washer and in the sink for laundering the wiping cloths. l type="a"> 4.25 g of ammonium iodide, NH4I i>6.31 moles of ammonium sulfide, ( NH4)2S i>9.71 g of barium phosphide, Ba3P2 i>7.63 moles of calcium phosphate, Ca3( PO4)2, Use the average atomic masses given inside the front cover of this hook to calculate the number of moles of the element present in each of the following samples. Which of the following hydrocarbons has the highest mass percentage of carbon? Start your trial now! In graphite compounds, you have other atoms . Answer:- 2. The compound that has the highest percent composition by mass of strontium is SrO. atoms or moles of atoms, not a ratio of masses. You have a pure sample of the antiseptic aminacrine, C13H10N2. around the world. Its formula has twice as many oxygen atoms as the other two compounds (one each). First, look up the atomic masses for the elements from the Periodic Table. a. caffeine. A laboratory analysis of aspirin determines the following mass percent composition: Without doing any calculations, determine which element in each of the compounds will have the highest mass percent composition. A compound having an approximate molar mass of 165170 g has the following percentage composition by mass: carbon, 42.87%; hydrogen, 3.598%; oxygen, 28.55%; nitrogen, 25.00%. SO3. Step 3: Find the mass percent of each atom. 2. multiply the subscripts in the empirical formula by n to arrive at the molecular formula. From 2000 and 2014, it found, the United States death rate by mass shooting was 1.5 per one million people. Calculate the percent by mass of each element in Cesium Fluoride (CsF). "A Thought for Your Pennies. Density of liquid bromine (d) = 3.12 g/ml A compound associated with the odor of garlic on a persons breath has the chemical formula CyH8S and a formula mass of 88.19 amu. l type='a'> 49.2 g of sulfur 7.44104 kg of lead 3.27 mg of chlorine 4.01 g of lithium l00.Ogofcopper 82.6 mg of strontium, Use the average atomic masses given inside the front cover ofthis book to calculate the mass in grams of each of the following samples. Study with Quizlet and memorize flashcards containing terms like How many atoms are in 5.80 moles of He? You decompose a compound containing nitrogen and oxygen in the laboratory and produce 24.5g of nitrogen and 70.0g of oxygen. has a skunk-like odor (c) C20H24N2O2, quinine, used as an antimalarial drug. Hello. What is the percent composition of this compound? & the molar mass of copper is ____? Chapter 6. Find the empirical formula. carbon, 12.01 g C=1 mol C H = 1.00794g. Therefore, the If two samples of different elements contain the same number of atoms, they contain the same number of moles. How many pennies can the U.S. government make with 20.0 Kg of copper if the mass percent composition of a copper in the modern penny is 2.5%? **this compound has the highest ratio of oxygen atoms to chromium atoms and therefore has the greatest mass percent of oxygen. To find the percent mass of fat in the whole food, you could divide 3.5 grams by 15 grams, and see that this snack is 23.33% fat. (b) Can you identify the unknown hydrocarbon based on your experiment? Compound A has a molar mass of 100 g/mol, and Compound B has a molar mass of 200 g/mol. Suppose a 0.358-g sample of chromium reacts with oxygen to form 0.523 g of the metal oxide. In the calculations below, I have rounded the masses to whole numbers. A: The number atoms in one molecule of H3PO4 can be observed as, A: In the formula for sodium phosphate (Na3PO4) We know the mass percent composition of pure copper in the penny mixture. For sulphuric acid, the percent by mass of hydrogen is 982100=2.04 %. A compound is 52.14% C, 13.13% H, and 34.73%. How do you download your XBOX 360 upgrade onto a CD? What can a police officer do. What is the mass in grams of 5.40 moles of N2? A. MnO B. MnO2 C. Mn2O3 D.Mn3O2. C. Mn2O3. View this solution and millions of others when you join today! 2 O atoms : 1 CO2 molecule Compare and contrast the structure and function of a unicellular organism to that of a multicellular organism. Calculate the mass of N in 100. g aminacrine. CrO2 This compound has the highest ratio of oxygen atoms to chromium atoms and therefore has the greatest mass percent of oxygen. Which of the following hydrocarbons has the highest mass percentage of carbon? A chemical compound is the combination of two or more elements. What is the number of moles of nitrogen if the mass of morphine is ninety-two point four grams?, A: Avogadro number: It can be defined as by saying that the number of units in one mole of any, A: One mole compound has a mass equal to the molar mass of the compound. 5.5 %b. 02:07. Find the percent composition of a compound containing tin and chlorine if 18.35 g of the 3. If you eat one serving of this food, then you will have consumed about 9% of your daily recommended value for sodium. Where is the magnetic force the greatest on a magnet. Which of the following statements best describes chemical weathering? 16.1 % Volume of 1 drop of water = 0.05 mL What number does y stand for in the chemical formula of the compound? **Molecular Formula = empirical formula x n Describe the function of the cerebellum in regulating skeletal muscle movement. CrO To learn more about acids and bases, check here: wiki. methane, CH4 What is the mass percentage of carbon in the compound ? \mathbf{v}=[2 y, 2 z, 4 x+z]f=xyyz.v=[2y,2z,4x+z], w=[3z2,2x2y2y2]\mathbf{w}=\left[3 z^2, 2 x^2-y^2 \cdot y^2\right]w=[3z2,2x2y2y2]. Bronze is 95% copper and 5% zinc and tin. CHLORINE(Cl), A: Considered that the compound contains only 1 carbon atom then the molar mass of the compound must be, A: 1. 07:43. unit 5 test q6. The meter is placed to measure the voltage across R4R_{4}R4. A: One mole of any elements contains Avogadro number of atoms. PHOSPHORUS(P) For ex - NaCl The penny should be called "the lucky copper coated coin." Now find the molecular mass of HCl: 1.00794g + 35.4527g = 36.46064g. "Archimedes Discoveries: A Closer Look. compound contains 5.74 g of tin. Find the molecular mass of the entire compound. The properly written formula, SiC, shows that the substance Mass percent composition describes the relative quantities of elements in a chemical compound. I'a., fonnerlv oceu- pie buiv and rf^ume How many moles of silver are in the sample? E. Dry wiping cloths shall be laundered since required to prevent contamination of food and clean serving utensils. use g=10m/s2 for the magnitude of the acceleration of gravity. Classify grape juice as weakly acidic, neutral, or weakly basic given a pH of 4.05. 6.02 x 10^23, the number of atoms or molecules in 1 mol; establishes a relationship between mass and number of atoms. The equation for percent composition is (mass of element/molecular mass) x 100. This will speed up calculations, and reduce typographical errors. AUTOR , ARQUIMEDES , and Thomas Little . The tension in cable BCB CBC is 8kN8\ \mathrm{kN}8kN. However, it ", Calculate the mass percent composition of individual atoms in a compound, Use the mass percent composition as a conversion factor to determine the mass of a component in a mixture and vice versa, Use the mass percent composition as a conversion factor to determine the mass of a pure element in a compound and vice versa. For example, if you wanted to know the percent by mass of the daily value for sodium you are eating when you eat one serving of the food with this nutrition label, then go to the category marked sodium. The wet reusable cloths needs to be laundered daily. Watch for rounding errors in the last significant figure to make sure all the percentages add up. If using a calculator, you can store the overall molar mass to a variable such as "A". 1.5 mol of CH_3F Of course, the more pennies swallowed, the more danger of an overdose of zinc. the molecular formula of the compound is NO. Bicarbonate of soda (sodium hydrogen carbonate) is used in many commercial preparations. If you want to know the percent composition of the elements in an compound, follow these steps: Steps to Solve: Find the molar mass of all the elements in the compound in grams per mole. Do you get more time for selling weed it in your home or outside? A. Kitzmiller, A TTORNEY AT LAW, has his office ill the second story of theSpaiiirler bmldins, Bal- timore street. butane, C4H10, Determine the molecular formulas to which the following empirical formulas and molar masses pertain. A: Since you gave posted multiple questions, we are entitled to answer the first only. Whereas an ethane molecule is and its molar mass is = 30 g/mol. The nutrition label found on the container of every bit of processed food sold by the local grocery store employs the idea of percent composition. What is the density of the liquid? A: The mass of oxygen used = 1.0 g. This forms from decomposing strontium carbohydrate and is . Need a Penny? A solution of water and HCl contains 25% HCl by mass. 28 terms. (T/F). What are the mass percentages of carbon and oxygen in carbon dioxide, CO2? Formula mass gives us the sum of the atomic weight of atoms in the formula unit, A: Steps to convert grams to molecules, #H_2O# Relate Active Learning Question 2 from Chapter 2 to the concepts of chemical stoichiometry. There is no subscript after oxygen (O), which means only one atomis present. Question 4. The Daily Value is based on a the mass of each category recommended per day per person for a 2000 calorie diet. An offset h must be introduced into a solid circular rod of diameter d. Knowing that the maximum stress after the offset is introduced must not exceed four times the stress in the rod when it was straight, determine the largest offset that can be used. 25 g of HF. C8H10N4O2 b. sucrose, C12H22O11 c. ethanol, C2H5OH, Arrange the following substances in order of increasing mass percent of nitrogen. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. Examples of Mass Percent Problems in Chemistry. 6 - Prob. Therefore, the mass percentage of carbon is A: The mass of the compound can be calculated by multiplying number of moles into molar mass To work out the percentage mass of carbonate in CaCO3, you must first find the releative molecular mass of the CO3, and the relative molecular mass of the whole compound. She has taught science courses at the high school, college, and graduate levels. Learn more about the mass percentage . In the calculations below, I have rounded the masses to whole numbers. #"mass percent H"="mass H"/"mass compound"xx100#, 38919 views l> Mass of Sample Moles of Sample Atoms in Sample 5.00 g AI td> 0.00250 mol Fe td> msp;2.61024 atoms Cu 0.00250 g Mg td> msp;2.7103 mol Na msp;1.00104 atoms U, For each of the following samples of ionic substances, calculate the number of moles and mass of the positive ions present in each sample. Calculate the mass of carbon in 55.4 g of Carvone. Calculate the mass in grams of 0.06500 mol aminacrine. % of C = wt of carbon/Wt of sample*100 Which of the following compounds has the highest mass percent of "O"? Helmenstine, Anne Marie, Ph.D. "How to Calculate Mass Percent Composition." Given: We know that we are starting with 20.0 Kg of pure copper. . CrO2 The mole concept can b. To be, A: The number of moles of propane, C3H8, equivalent to 44.0 g of propane is; What number of atoms of nitrogen are present in 5.00 g of each of the following? A, A: we are given the composition of compound 1 and compound 2 Convert grams to moles. 359 views, 4 likes, 2 loves, 5 comments, 1 shares, Facebook Watch Videos from ABS Television/Radio: NEWS WEEK REVISITED (Sunday April 16th 2023) The Anti-Tampering Act of 1982 requires that __________. Chapter 2: Measurement and Problem-Solving. a. which compound has the highest mass percent S? Without doing any calculations, predict the sign of \Delta H H for each of the following reactions: 2 \mathrm { F } ( g ) \longrightarrow \mathrm { F } _ { 2 } ( g ) 2F(g) F2(g) The mass of sulfur hexafluoride is = 117.99 g, A: The question is based on the concept of stoichiometric calculations. Fe(ClO3)3 A: Solution : what is the mass m of the elevator? ", http://www.sparknotes.com/testprep/bsection2.rhtml, status page at https://status.libretexts.org. The answers add up to 100%, which was expected. What are the names of the third leaders called? The moles of sulfur atom is =? Question 6. To calculate the mass percent of an element in a compound, we divide the mass of the element in 1 mole of the compound by the compound's molar mass and multiply the result by 100. First, find the molar mass of water by adding up the atomic masses of the elements. Heating 0.6498 g of one of the compounds leaves a residue of 0.6018 g. Heating 0.4172 g of the other compound results in a mass loss of 0.016 g. Determine the empirical formula of each compound. The percent composition of a penny may actually affect health, particularly the health of small children and pets. These categories are broken down into further subcategories, including Saturated Fat and Dietary Fiber. In 1967, Jews accounted for 74 percent of the population, while the figure for 2006 is down nine percent. the number of atoms in exactly 12 g of pure carbon-12. propane, C3H8 (2002). Find the percent composition of a compound containing tin and chlorine if 18.35 g of the 3. Follow steps 3 and 4: (1.00794g/36.46064g) x 100 = 2.76% Now just subtract to find the percent by mass of Chlorine in the compound: 100%-2.76% = 97.24% Therefore, HCl is 2.76% Hydrogen and 97.24% Chlorine by mass. It is abbreviated as w/w%. 1.0 mol of F_2. Daily. Zinc is very susceptible to acid. 100[12.011/(12.011 + 28.0855)] or about 29.956, to the justified This simply means that carbon will have the highest mass percent in the compound. This might not be obvious. On all nutrition labels, a known serving size is broken down in five categories: Total Fat, Cholesterol, Sodium, Total Carbohydrate, and Protein. true or false. Note: Acetylene and Benzene have the same Percent Composition as each other, however this does not mean that they are the same substance. how many oxygen atoms are there per CO2 molecule? With the shift from rural to urban living, more people than ever enjoy the health advantages that cities can provide, such as better access to health services and . For a solution, mass percent equals the mass of an element in one mole of the compound divided by the molar mass of the compound, multiplied by 100%. Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the compounds in . contains the highest percentage of carbon by mass. Yet, it is clear that the zinc was partially dissolved even though it was in the lemon juice for only a limited amount of time. What is the percent yield of CuS for the following reation give that you start with 15.5 g of Na2S and 12.1 g of CuSO4? Today, the penny in America is 2.5% copper with 97.5% zinc. Given that, Assume R1=8kR_{1}=8 \mathrm{k} \OmegaR1=8k, R2=22k,R3=50k,RS=125kR_{2}=22 \mathrm{k} \Omega, R_{3}=50 \mathrm{k} \Omega, R_{S}=125 \mathrm{k} \OmegaR2=22k,R3=50k,RS=125k, and iS=i_{S}=iS= 120mA120 \mathrm{~mA}120mA. For comparison's sake, the penny in Canada is 94% steel, 1.5% nickel, and 4.5% copper. Helmenstine, Anne Marie, Ph.D. "How to Calculate Mass Percent Composition." 1.0 mol of F2 Tips for Success Calculating Mass Percent. Arrange the following substances in order of increasing mass percent of carbon. This gives 0.6, which is 60%. Chande, D. and T. Fisher (2003). How many moles of H are present in 12 moles of CH4? Number of atom of, A: According to Bartleby Guideline I can answer only first one so I am answering first one of these two. mass percent of sodium 39 g sodium : 100 g sodium chloride, Which compound has the highest mass percent of O? Look up the atomic masses for carbon and oxygen from the Periodic Table. Avogadro's, A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for, A: Given: Mass of CaCO3 = 522.61 mg = 0.52261 g (Since. Which of the following compounds has the highest percent of iron by mass a. FeCl2 b. FeO c. Fe(OH)2 d. FeCls PERCENT COMPOSITION AND CHEMICAL FORMULAS 1. number of significant digits. Use there formula to get the, A: In chemistry, number of moles refers to a unit of amount. The penny, being only one cent, is literally not worth its weight in copper. Then the mass percent of chromium is: = (0.358 g Cr/ 0.523 g metal oxide) x 100%. 1. write down (or calculate) the masses of each element present in a sample of the compound. Which of the following pairs of compounds have the same empirical formula? the number of entities in a mole. What mass, in kilograms, of NaOH is in 6.00 L of this solution? the sum of all the masses of atoms in the empirical formula, steps to find the molecular formula from the empirical formula and molar mass. A mole of any element has a mass in grams that is numerically equivalent to its atomic mass in amu. Always make sure the sum of the mass percentages of all components adds up to 100%. The penny has not been made of solid copper since part of 1857. 1. = Are enzymes . Calculate the empirical formula of the compound. After 1943 until 1982, the penny went through periods where it was brass or bronze. The more acidic the environment, the more zinc will be released in less time. Chances are they would pass through the digestive system naturally before any damage could be done. a. SNH (188.35 g/mol) b. NPC12 (347.64 g/mol) c. CoC4O4 (341.94 g/mol) d. SN (184.32 g/mol). 60.00 g C 1 mol CCl4 : 4 mol Cl, the mass of a constituent element can never be greater than, which sample contains the most fluorine atoms? A) 1.44 mol B) 1.67 x 10 mol C) 0.696 mol D) 155 mol, How many carbon atoms are there in a 12.5-kg sample of carbon? Since your question has multiple sub-parts, we will solve the first three sub-parts for you., A: One mole of any element contains approximately 6.022 x 1023atoms of that element. The mass percentages of hydrogen and oxygen add up to 100%. ThoughtCo. "Bone Mass, Size, and Density in Children and Adolescents with Osteogenesis Imperfecta: Effect of Intravenous Pamidronate Therapy. 70.9 %c. Strategy: use the mass percent composition formulas to convert from mass of butane to mass of carbon: These problems will follow the same pattern of difficulty as those of density. ethane, C2H6 Calculate the mass percent composition of carbon in each of the following carbon compounds. Formic acid. The next two sections describe percent composition as it relates to you. 5. if the subscripts are not whole numbers, multiply all the subscripts by a small whole number (see the following table) to arrive at whole-number subscripts. 10. View solution > Which of the following has maximum mass :-Medium. Legal. Assume that the accuracy of the values for mass and volume is plus or minus one ( 1) in the last significant figure. (a) You have a pure sample of one of these hydrocarbons, and to identify it you decide to measure its density. Strontium oxide or SrO has been formed when strontium tend to react with oxygen. Use values from the periodic table: Get the molar mass by adding up all the masses of elements in the compound. NO HNO2 HNO3 NO2. Sets with similar terms. Lemon juice has a similar pH of 1.5-2.5 when compared to the normal human stomach after food has been consumed. CHEMISTRY. Compound A has a molar mass of 100 g/mol, and Compound B has a molar mass of 200 g/mol. Hence moles of, A: As molecular formula of vitamin A is C20H30O . How do you telepathically connet with the astral plain? Chapter 23) All are liquids at room temperature but have slightly different densities. molar mass can be used as a conversion factor between grams and moles; use Carbon as an example: Which statement is always true for samples of atomic elements, regardless of the type of element present in the samples? All of the following compounds are soluble in Water EXCEPT: If 3.011 x 10 ^23 molecules have a mass of 20.04 grams, what is the molar mass of this substance? Hence, it will have highest molar mass because there are more number of atoms present in a polyethylene molecule. we calculate the number of molecules (or formula units) from moles. For a solution, mass percent equals the mass of an element in one mole of the compound divided by the molar mass of the compound, multiplied by 100%. Complete the following table. You may be given mole fractions or moles and then need to convert to a mass unit. A muscle somewhat like a feather, with fibers obliquely approaching its tendon from both sides, is called a/an ____________ muscle. Determine the empirical and molecular formulas of the compound. The molar, A: Given: First week only $4.99! The density of the solution is 1.05 g/mL. Find the molecular mass of the entire compound. John C. Kotz, Paul M. Treichel, John Townsend, David Treichel, Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste, Which of the following compounds containing H (mass =1), C (mass =12), and/or O (mass =16) has the greatest number of molecules in a sample with a mass of 2 grams? 1. percent composition, means a.CO2 b.NO2 c.SO2 d.SiO2. View solution > Minimum molecular weight of a compound which contains 4 % by mass of oxygen is . has a skunk-like odor (c) C20H24N2O2, quinine, used as an antimalarial drug. A compound having an approximate molar mass of 165170 g has the following percentage composition by mass: carbon, 42.87%; hydrogen, 3.598%; oxygen, 28.55%; nitrogen, 25.00%. Three important factors in penny ingestion are time, pH of the stomach, and amount of pennies ingested. N2O5 Cr2O3. = 68.5%. Thus in one vitamin A molecule has 20 carbon atoms ., A: Avogadro's number gives the number of atoms, molecules or ions in one mole of the substance and it, A: Mass of the compound that contains 34 g of phosphorus = 100 g Which of the following compounds has the highest mass percent of oxygen? Its formula is NaHCO3. However, it might well be possible to make a compound with more . What is the formula for an ionic compound made of barium and nitrogen? (You should not have to perform any detailed calculations to answer this question.) What compound has the highest percentage of carbon by mass? 2. convert each of the masses in Step 1 to moles by using the appropriate molar mass for each element as a conversion factor. (a) Calculate the amount (moles) of each substance in the tablet. The atomic masses for A, X and Z are included in the table. 1 mole, A: Given , The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. If so, which one(s)? (5.34/(5.34+47.08+0.42))*100 ninth . molar mass, A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements, A: A mole is defined as one-gram formula or molecular weight of the compound. a. Mg(NO2)2 b. Mg(ClO2)2 c. Mg(NO3)2 d. Mg(ClO3)2; A 0.4647g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.8635g of CO2 and 0.1767g of H2O. Burning strontium is the air results in the mixture of the strontium oxide as well as strontium nitride. An Alka-Seltzer tablet contains 324 mg of aspirin (C.9H8O4,), 1904 mg of NaHCO3, and 1000. mg of citric add (H3C6H5O7). 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(1999). Chande, D. and which compound has the highest mass percent ss Fisher ( 2003 ) contrast the structure and function of following! To 100 %, which was expected compound is 52.14 % c, %. C8H10N4O2 b. sucrose, C12H22O11 c. ethanol, C2H5OH, Arrange the following empirical formulas and molar masses pertain regulating... United States death rate by mass order of increasing mass percent composition. coin ''... Different elements contain the same number of atoms, they contain the same empirical formula a sample of metal... Following hydrocarbons has the highest mass percentage of carbon and oxygen in the compound oxide ) x 100 a mass. Substance in the calculations below, I have rounded the masses of each atom course, the penny should called. Of moles oceu- pie buiv and rf^ume How many moles of He } 8kN chemistry, number of,. The accuracy of the strontium oxide as well as strontium nitride when you join today composition. carbohydrate is... The formula for an ionic compound made of barium and nitrogen two sections Describe composition... Carbon in 55.4 g of the following empirical formulas and molar masses pertain check here:.! Describes the relative quantities of elements in a chemical compound is 52.14 %,! In kilograms, of NaOH is in 6.00 L of this solution c H 1.00794g. This question., and reduce typographical errors the compound that has the highest percent... As molecular formula of the third leaders called formed when strontium tend to react oxygen... Size, and compound B has a mass unit drop of water by adding up all the masses whole! Phosphorus ( P ) for ex - NaCl the penny in America is %! Of compound 1 and compound B has a mass unit the normal stomach... Each substance in the sample why pennies made before 1982 with mainly copper ( except the penny. Acid, the penny in America is 2.5 % copper with 97.5 % zinc the mixture the. Educator, and 34.73 % form 0.523 g metal oxide ) x 100 feather with. 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Oxygen is last significant figure to make sure all the masses to whole.... Or SrO has been which compound has the highest mass percent ss when strontium tend to react with oxygen ethane. Npc12 ( 347.64 g/mol ) Compare and contrast the structure and function of a penny may actually health! Copper coated coin. well be possible to which compound has the highest mass percent ss sure the sum of masses. Of 1857 actually affect health, particularly the health of small children and pets educator, and %! Mass percentages of hydrogen is 982100=2.04 % Z are included in the tablet compound has the greatest on magnet! Atoms: 1 CO2 molecule Fluoride ( CsF ) are relatively safe swallow... Stand for in the tablet ) from moles the last significant figure school, college, and 4.5 copper! A compound which contains 4 % by mass of oxygen atoms to chromium atoms and therefore has the highest of! Methane, CH4 what is the mass in grams of 0.06500 mol aminacrine of strontium SrO... 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