Concept explainers
(a)
Interpretation:
The number of molecules present in
(a)
Explanation of Solution
Given,
The mass of
(b)
Interpretation:
The number of molecules present in
(b)
Explanation of Solution
Given,
The mass of
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Chapter 4 Solutions
General, Organic, and Biochemistry
- What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 52?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_forwardThe compound SF6 is made by burning sulfur in an atmosphere of fluorine. The balanced equation is Sa(s) + 24 F2(g) SF6(g) Starting with a mixture of 1.6 mol of sulfur. Sg, and 35 mol of F2, (a) Which is the limiting reagent? (b) What amount of SF6 is produced?arrow_forward
- Calculate the mass in grams of 3.839 moles of (a) hydrazine, a rocket propellant. (b) caffeine, C4H5N2O. (c) theobromine, C7H8N4O2, the alkaloid present in chocolate and cocoa.arrow_forwardHow much, in grams, does each of the following quantities of matter weigh? a. 3.00 moles of P atoms b. 2.00 moles of SO2 molecules c. 5.00 moles of Cl atoms d. 5.00 moles of Cl2 moleculesarrow_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
- How 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_forwardMethane (CH4) is the main component of marsh gas. Heating methane in the presence of sulfur produces carbon disulfide and hydrogen sulfide as the only products. a. Write the balanced chemical equation for the reaction of methane and sulfur. b. Calculate the theoretical yield of carbon disulfide when 120. g of methane is reacted with an equal mass of sulfur.arrow_forwardGlycerol, 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_forward
- Propane, C3H8, is the fuel of choice in a gas barbecue. When burning, the balanced equation is C3H8+5O23CO2+4H2O a What is the limiting reactant in cooking with a gas grill? b If the grill will not light and you know that you have an ample flow of propane to the burner, what is the limiting reactant? c When using a gas grill you can sometimes turn the gas up to the point at which the flame becomes yellow and smokey. In terms of the chemical reaction, what is happening?arrow_forwardFreon- 12 (CCI2F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Calculate the number of molecules of Freon-12 in 5.56 mg of Freon-12. What is the mass of chlorine in 5.56 mg of Freon-12?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
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