Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 4, Problem 35E
The active ingredient in aspirin is acetylsalicylic acid, which has the chemical formula
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Chapter 4 Solutions
Chemistry In Focus
Ch. 4 - Interpreting Chemical Formulas Determine the...Ch. 4 - Prob. 4.2YTCh. 4 - Prob. 4.3YTCh. 4 - Prob. 4.4YTCh. 4 - Calculating Formula Mass Calculate the formula...Ch. 4 - Using the Molar Mass to Find the Number of...Ch. 4 - Prob. 4.7YTCh. 4 - Chemical Formulas as Conversion Factors (Mass to...Ch. 4 - Prob. 4.9YTCh. 4 - Prob. 4.10YT
Ch. 4 - Using Chemical Equation Coefficients as Conversion...Ch. 4 - Prob. 1SCCh. 4 - Prob. 2SCCh. 4 - Prob. 3SCCh. 4 - Prob. 4SCCh. 4 - The coefficients in the chemical reaction 2A+3B...Ch. 4 - Prob. 6SCCh. 4 - In Chapter 3, we learned that all matter is...Ch. 4 - Name some common everyday compounds.Ch. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - Prob. 7ECh. 4 - What is the difference between a common name for a...Ch. 4 - Prob. 9ECh. 4 - Prob. 10ECh. 4 - Prob. 11ECh. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - Why must chemical equations be balanced?Ch. 4 - Explain the numerical relationships inherent in a...Ch. 4 - Chemical Formulas Determine the number of each...Ch. 4 - Determine the number of each type of atom in each...Ch. 4 - Classify each compound as ionic or molecular:...Ch. 4 - Classify each compound as ionic or molecular:...Ch. 4 - Prob. 21ECh. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Prob. 25ECh. 4 - Prob. 26ECh. 4 - Give a chemical formula for each compound: a....Ch. 4 - Give a chemical formula for each compound: a....Ch. 4 - Prob. 29ECh. 4 - Calculate the formula mass for each compound:...Ch. 4 - The formula mass of an unknown compound containing...Ch. 4 - The formula mass of an unknown compound containing...Ch. 4 - Mole Conversions How many moles of CO2 are...Ch. 4 - What is the mass of 2.55 moles of water?Ch. 4 - The active ingredient in aspirin is...Ch. 4 - The active ingredient in Tylenol is acetaminophen...Ch. 4 - Calculate the number of water molecules (H2O) in...Ch. 4 - Acetone (C3H6O) is used as nail polish remover. If...Ch. 4 - Determine the number of sugar molecules in 7.5 g...Ch. 4 - One drop of water from a medicine dropper has a...Ch. 4 - How many chlorine atoms are in each of the...Ch. 4 - How many hydrogen atoms are in each of the...Ch. 4 - Prob. 43ECh. 4 - Find the number of moles of nitrogen in each of...Ch. 4 - The U.S. Food and Drug Administration recommends...Ch. 4 - The scientific consensus indicates that adults...Ch. 4 - Determine the mass of iron (in kilograms)...Ch. 4 - Determine the mass of carbon (in kilograms)...Ch. 4 - Balancing Chemical Equations Balance each chemical...Ch. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - Water can be synthesized according to the...Ch. 4 - Billions of pounds of urea, CO(NH2)2, are produced...Ch. 4 - Prob. 55ECh. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - Prob. 58ECh. 4 - Prob. 61ECh. 4 - For each space-filling molecular model, write a...Ch. 4 - For each chemical reaction, draw in the missing...
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- The 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_forwardThe 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_forwardYou 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_forward
- Glycerol, C3H8O3, is used as a moistening agent for candy and is the starting material for nitroglycerin. Calculate the mass of a glycerol molecule in grams.arrow_forward3.96 Methyl cyanoacrylate is the chemical name for the substance sold as Super Glue, and it has the chemical formula C5H5NO2. Calculate the number of molecules of this substance in a 1.0-ounce tube of Super Glue, assuming that the glue is 80% methyl cyanoacrylate by mass.arrow_forwardThe reaction of methane and water is one way to prepare hydrogen for use as a fuel: CH4(g) + H2O(g) CO(g) + 3 H2(g) If you begin with 995 g of CH4 and 2510 g of water, (a) Which reactant is the limiting reactant? (b) What is the maximum mass of H2 that can be prepared? (c) What mass of the excess reactant remains when the reaction is completed?arrow_forward
- 4.108 Elemental analysis is sometimes carried out by combustion of the sample. For a hydrocarbon, the only products formed are CO2 and H2O. If a 1.36-g sample of an unknown hydrocarbon is burned and 2.21 g of H2O is produced along with 4.07 g of CO2, what is the empirical formula of the hydrocarbon?arrow_forward4.84 Aluminum chloride (AlCl3) is used as a catalyst in the production of polyisobutylene, which is used in automobile tires. Scrap aluminum metal reacts with chlorine gas (Cl2) to produce AlCl3. Suppose that 2.70 g of Al and 7.10 g of Cl2 are mixed. What is the maximum mass of AlCl3 that could be formed?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_forward
- You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O, and you find that 561 mg CO2 is produced, along with 306 mg H2O. a If the substance contains only C, H, and O, what is the empirical formula? b If the molar mass of the compound is 180 g/mol, what is the molecular formula of the compound?arrow_forwardDisulfur dichloride, S2Cl2, is used to vulcanize rubber. It can be made by treating molten sulfur with gaseous chlorine: S8(l) + 4 Cl2(g) 4 S2Cl3(l) Starting with a mixture of 32.0 g of sulfur and 71.0 g of Cl2, (a) Which is the limiting reactant? (b) What is the theoretical yield of S2Cl2? (c) What mass of the excess reactant remains when the reaction is completed?arrow_forwardPrevacid is used to treat gastroesophageal reflux disease (GERD). The chemical formula of Prevacid is C16H14F3N3O2S. a. What is the molar mass of Prevacid? b. What mass of fluorine is in 0.75 mol of Prevacid? c. What number of carbon atoms is in 0.75 mol of Prevacid? d. What is the mass of 4.25 10 molecules of Prevacid?arrow_forward
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