Concept explainers
Cyanogen gas, C2N2, has been found in the gases of outer space. It can react with fluorine to form carbon tetrafluoride and nitrogen trifluoride.
(b) How many moles of CF4 are obtained from 13.75 mol of fluorine?
(c) How many moles of cyanogen are required to produce 0.8974 mol of NF3?
(d) How many moles of fluorine will yield 4.981 mol of nitrogen trifluoride?
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Chapter 3 Solutions
Chemistry: Principles and Reactions
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- In an experiment designed to produce calcium oxide by the chemical reaction 2Ca + O2 2CaO 177.2 g of CaO was obtained out of a possible 203.9 g ofCaO. a. What is the theoretical yield of CaO? b. What is the actual yield of CaO? c. What is the percent yield of CaO?arrow_forwardYou 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_forwardThe principal constituent of natural gas is methane, which burns in air according to the reaction CH4+2O2CO2+2H2O How many grams of O2 are needed to produce 3.50 g of CO2?arrow_forward
- The following reaction, depicted using molecular models, is used to make carbon tetrachloride, CCl4, a solvent and starting material for the manufacture of fluorocarbon refrigerants and aerosol propellants. Calculate the number of grams of carbon disulfide, CS2, needed for a laboratory-scale reaction with 62.7 g of chlorine, Cl2.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_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
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