Basic Chemistry
6th Edition
ISBN: 9780134878119
Author: Timberlake, Karen C. , William
Publisher: Pearson,
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1. Ethanol has a molecular formula of CH3CH2OH.
a. What is the molar mass of ethanol?
b. What is the mass of 0.562 moles of ethanol?
c. How many moles of ethanol are present in a 100.0 g sample of ethanol?
d. How many moles of carbon atoms are present in a 100.0 g sample of ethanol?
e. How many grams of carbon are present in a 100.0 g sample of ethanol?
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mol P4O10
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Ibuprofen, the anit-inflammatory ingredient in Advil, has the formula C13H18O2.
a. How many molecules are in 0.200 mole ibuprofen?
b. How many H atoms are in 0.100 mole ibuprofen?
c. How many moles of ibuprofen contain 7.4x1025 atoms of C?
Chapter 7 Solutions
Basic Chemistry
Ch. 7.1 - What is a mole?Ch. 7.1 - What is Avogadro’s number?Ch. 7.1 - Calculate each of the following: a. number of C...Ch. 7.1 - Calculate each of the following: a. number of Li...Ch. 7.1 - Calculate each of the following quantities in 2.00...Ch. 7.1 - Calculate each of the following quantities in...Ch. 7.1 - Quinine, C20H24N2O2 , is a component of tonic...Ch. 7.1 - Aluminum sulfate, Al2(SO4)3 , is used in some...Ch. 7.1 - Naproxen is used to treat pain and inflammation...Ch. 7.1 - Benadryl is an over-the-counter drug used to treat...
Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.3 - Calculate the mass, in grams, for each of the...Ch. 7.3 - Calculate the mass, in grams, for each of the...Ch. 7.3 - Calculate the mass, in grams, in 0.150 mol of each...Ch. 7.3 - Calculate the mass, in grams, in 2.28 mol of each...Ch. 7.3 - Calculate the number of moles in each of the...Ch. 7.3 - Calculate the number of moles in each of the...Ch. 7.3 - Calculate the number of moles in 25.0 g of each of...Ch. 7.3 - Calculate the number of moles in 4.00 g of each of...Ch. 7.3 - Calculate the mass, in grams, of C in each of the...Ch. 7.3 - Calculate the mass, in grams, of N in each of the...Ch. 7.3 - Propane gas, C3H8 , is used as a fuel for many...Ch. 7.3 - Allyl sulfide, (C3H5)2S , gives garlic, onions,...Ch. 7.3 - a. The compound MgSO4 , Epsom salts, is used to...Ch. 7.3 - Prob. 34PPCh. 7.3 - Prob. 35PPCh. 7.3 - Prob. 36PPCh. 7.4 - Calculate the mass percent composition of each of...Ch. 7.4 - Calculate the mass percent composition of each of...Ch. 7.4 - Prob. 39PPCh. 7.4 - Prob. 40PPCh. 7.4 - Prob. 41PPCh. 7.4 - Calculate the mass percent of S in each of the...Ch. 7.5 - Calculate the empirical formula for each of the...Ch. 7.5 - Calculate the empirical formula for each of the...Ch. 7.5 - Calculate the empirical formula for each of the...Ch. 7.5 - Calculate the empirical formula for each of the...Ch. 7.6 - Write the empirical formula for each of the...Ch. 7.6 - Prob. 48PPCh. 7.6 - The carbohydrate fructose found in honey and...Ch. 7.6 - Caffeine has an empirical formula of C4H5N2O . If...Ch. 7.6 - Prob. 51PPCh. 7.6 - Glyoxal, used in textiles; maleic acid, used to...Ch. 7.6 - Prob. 53PPCh. 7.6 - Prob. 54PPCh. 7.6 - Vanillic acid contains 57.14% C, 4.80% H, and...Ch. 7.6 - Lactic acid, the substance that builds up in...Ch. 7.6 - A sample of nicotine, a poisonous compound found...Ch. 7.6 - Adenine, a nitrogen-containing compound found in...Ch. 7.6 - Clavulanic acid has a molecular formula of C8H9NO5...Ch. 7.6 - Phenylpropanolamine (PPA) is used to treat urinary...Ch. 7 - The chapter sections to review are shown in...Ch. 7 - The chapter sections to review are shown in...Ch. 7 - The chapter sections to review are shown in...Ch. 7 - Prob. 64UTCCh. 7 - Prob. 65APPCh. 7 - Calculate the mass, in grams, of Cu in each of the...Ch. 7 - Prob. 67APPCh. 7 - Calculate the mass percent composition for each of...Ch. 7 - Prob. 69APPCh. 7 - Prob. 70APPCh. 7 - A mixture contains 0.250 mol of Mn2O3 and 20.0 g...Ch. 7 - A mixture contains 4.001023 molecules of PCl3 and...Ch. 7 - Prob. 73APPCh. 7 - Prob. 74APPCh. 7 - Prob. 75APPCh. 7 - Prob. 76APPCh. 7 - Prob. 77APPCh. 7 - Prob. 78APPCh. 7 - Calculate the molar mass for each of the...Ch. 7 - Calculate the molar mass for each of the...Ch. 7 - Aspirin, C9H8O4 , is used to reduce inflammation...Ch. 7 - Ammonium sulfate, (NH4)2SO4 , is used in...Ch. 7 - Prob. 83APPCh. 7 - Prob. 84APPCh. 7 - Oleic acid, a component of olive oil, is 76.54% C,...Ch. 7 - Prob. 86APPCh. 7 - Prob. 87CPCh. 7 - Prob. 88CPCh. 7 - Prob. 89CPCh. 7 - The following problems are related to the topics...Ch. 7 - For parts a to f, consider the loss of electrons...Ch. 7 - A sterling silver bracelet, which is 92.5% silver...Ch. 7 - Prob. 9CICh. 7 - The active ingredient in an antacid tablet is...Ch. 7 - Oseltamivir, C16H28N2O4 , is a drug that is used...Ch. 7 - Prob. 12CI
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- Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (C2H5OH), 1 mol of formic acid (HCO2H), or 1 mol of water (H2O)? Explain why.arrow_forwardCopper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of CuI Are contained in 1.00 lb (454 g) of table salt containing 0.0100% CuI by mass?arrow_forwarditamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?arrow_forward
- 2. The chemical formula for the active ingredient in the anti-inflammatory drug Celebrex is C17H14F3N3O2S. a. What is the molar mass of C17H14F3N3O2S? b. How many moles are in 10.0 g of C17H14F3N3O2S? C. How many molecules are in 10.0 g of C17H14F3N3O2S?arrow_forward4. How many moles of Vitamin E ( the formula is written down) are present in 10.0 g of Vitamin E? Vita min E : C29H50O2 3.39x10-?mol O 2.07x10-mol O 2.32r10-molarrow_forwardThe average nicotine (C 10H 14N 2, molar mass 162.3 g/mol) content of a Camel cigarette is 1.93 mg. Suppose an individual smokes one pack of 20 cigarettes a day. a. How many moles of nicotine are smoked in a day? b. How many molecules of nicotine are smoked in a day?arrow_forward
- . Lycopene (C40H56) is an antioxidant molecule that is thought to slow aging and reduce the risk of cancer with a minimum daily intake of 6.5 mg. a. Determine the empirical formula for lycopene. b. How many moles of lycopene are required to meet the minimum daily dose?arrow_forward1. How many moles of manganese(II) fluoride, MnF2, are present in a sample that contains 3.32 moles of fluoride ions? moles MnF2 2. How many moles of fluoride ions are present in a sample that contains 2.82 moles of MnF2? moles F-arrow_forwardUsing the equation: 2 C2H6 + 7 O2 ⟶ 6 H2O + 4 CO2 You are given 12.33 moles of O2. How many moles of CO2 can be made? Select one: a. 7.04571 moles CO2 b. 21.5775 moles CO2 c. 7.046 moles CO2 d. 21.58 moles CO2arrow_forward
- 13. All about acetaminophen (Tylenol). The chemical formula of acetaminophen is C₂H₂NO₂. Acetaminophen is a very effective drug for general pain and headaches whose major side effect is liver toxicity. a. What is the molar mass of acetaminophen? H3C b. What is the mass of 1 molecule of acetaminophen in amu? C. 'N How many grams of acetaminophen are in 5.8 moles of acetaminophen? d. How many oxygen atoms are in 629 grams of acetaminophen? LOH e. If a sample of acetaminophen contains 81 hydrogen atoms, how many molecules of acetaminophen are in the sample?arrow_forwardOnly Answer questions 1 - d and 2 a-b Answers to questions 1 a-c a. Number of moles of O2 = 0.0613 mol b. Number of moles of MClO3= 0.040836 mol c. The Molar mass is 122.44 g/mol , The mystery substance is KClO3arrow_forward1211 2. 1ouprofen, the anit-inflammatory ingredient in Advil, has the formula C13HIBO2. a. How many molecules are in 0.200 mole ibuprofen? b. How many H atoms are in 0.100 mole ibuprofen? c. How many moles of ibuprofen contain 7.4x10²5 atoms of C? d. What is the molar mass of ibuprofen?arrow_forward
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