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Concept explainers
(a)
Interpretation:
The number of moles present in 0.500 g of sugar is to be determined. The molar mass of sugar,
Concept Introduction:
The formula that will be used −
(b)
Interpretation:
The number of moles present in 5.00 g of sugar is to be determined. The molar mass of sugar,
Concept Introduction:
The formula that will be used −
(c)
Interpretation:
The number of moles present in 25.0 g of sugar is to be determined. The molar mass of sugar,
Concept Introduction:
The formula that will be used −
(d)
Interpretation:
The number of moles present in 0.0250 g of sugar is to be determined. The molar mass of sugar,
Concept Introduction:
The formula that will be used −
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Chapter 5 Solutions
EBK GENERAL, ORGANIC, & BIOLOGICAL CHEM
- The sugar sucrose, which is present in many fruits and vegetables, reacts in the presence of certain yeast enzymes to produce ethanol and carbon dioxide gas. Balance the following equation for this reaction of sucrose. C12H22O11(aq) + H2O(l) C2H5OH(aq) + CO2(g)arrow_forwardThe molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain relievers, is C9H8O4. a. Calculate the molar mass of aspirin. b. A typical aspirin tablet contains 500. mg C9H8O4. What amount (moles) of C9H8O4 molecules and what number of molecules of acetylsalicylic acid are in a 500.-mg tablet?arrow_forwardHow much, in grams, does each of the following quantities of matter weigh? a. 2.00 moles of C atoms b. 3.00 moles of CO molecules c. 5.00 moles of F atoms d. 5.00 moles of F2 moleculesarrow_forward
- You take 1.00 g of an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen), burn it in air, and collect 2.20 g CO2 and 0.400 g H2O. You know that the molar mass of aspirin is between 170 and 190 g/mol. Reacting 1 mole of salicylic acid with I mole of acetic anhydride (C4H6O3) gives you 1 mole of aspirin and 1 mole of acetic acid (C2H4O2). Use this information to determine the molecular formula of salicylic acid.arrow_forwardUrea is used as a fertilizer because it can react with water to release ammonia, which provides nitrogen to plants. (NH2)2CO(s) + H2O() 2 NH3(aq) + CO2(g) (a) When 300. g urea and 100. g water are combined, calculate the mass of ammonia and the mass of carbon dioxide that form. (b) Calculate the mass of the excess reactant that remains after reaction.arrow_forwardThe active ingredient in Pepto-Bismo® (an over- the-counter remedy for an upset stomach) is bismuth sub-salicylate, C7H5BiO4. Analysis of a 1.7500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate in the sample? (Assume that there are no other bismuth-containing compounds in Pepto-Bismol.)arrow_forward
- Quicklime, CaO, is formed when calcium hydroxide is heated. Ca(OH)2(s) → CaO(s) + H2O(ℓ) The theoretical yield is 65.5 g but only 36.7 g quicklime I is produced. Calculate the percent yield.arrow_forwardIndicate the number of objects present in each of the following molar quantities. a. Number of oranges in 1.00 mole of oranges b. Number of camels in 1.00 mole of camels c. Number of atoms in 1.00 mole of Cu atoms d. Number of molecules in 1.00 mole of CO moleculesarrow_forwardHow many moles of nitrogen atoms are present in 3.00-mole samples of each of the following compounds? a. S2N2 b. S4N4 c. NSF d. N4S4Cl4arrow_forward
- 4.12 In petroleum refining, hydrocarbons are often manipulated by reacting them with H2(g). If hexene, C6H12, is reacted with hydrogen to form hexane, C6H14, how many moles of hydrogen are needed to react with 453 moles of hexene?arrow_forwardIndicate the number of objects present in each of the following molar quantities. a. Number of apples in 1.00 mole of apples b. Number of elephants in 1.00 mole of elephants c. Number of atoms in 1.00 mole of Zn atoms d. Number of molecules in 1.00 mole of CO2 moleculesarrow_forwardNitrogen monoxide is oxidized in air to give brown nitrogen dioxide. Starting with 2.2 mol NO, calculate how many moles and how many grams of O2 are required for complete reaction. Calculate what mass of NO2, in grams, is produced.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
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