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Calculate the mass of 0.750 mol of the following substances.
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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_forwardGiven that the density of argon is 1.78 g/L under standard conditions of temperature and pressure, how many argon atoms are present in a room with dimensions 4.0 m 5.0 m 2.4 m that is filled with pure argon under these conditions of temperature and pressure?arrow_forwardDetermine the number of atoms of nitrogen present in each of the following quantities. a. 10.0 g N2H4 b. 20.0 g HN3 c. 30.0 g LiNO3 d. 4.00 moles N2O5arrow_forward
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