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Chemistry

10th Edition
Steven S. Zumdahl + 2 others
ISBN: 9781305957404

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BuyFindarrow_forward

Chemistry

10th Edition
Steven S. Zumdahl + 2 others
ISBN: 9781305957404
Textbook Problem

Some bismuth tablets, a medication used to treat upset stomachs, contain 262 mg of bismuth subsalicylate, C7H5BiO4, per tablet. Assuming two tablets are digested, calculate the mass of bismuth consumed.

Interpretation Introduction

Interpretation: The mass of bismuth subsalicylate (C7H5BiO4) present in a bismuth tablet is given. The mass of bismuth consumed when two such tablets are digested is to be calculated.

Concept introduction: The mass percent of an element in present in a compound is calculated by the formula,

Masspercent=(MassoftheelementMassofthecompound×100)

To determine: The mass of bismuth consumed when two bismuth tablets are digested.

Explanation

Given

The mass of bismuth subsalicylate in each bismuth tablet is 262mg .

The mass of bismuth subsalicylate in two bismuth tablets =(2×262)mg=524mg

The atomic mass of bismuth is 209g/mol .

Molar mass of C7H5BiO4 =7C+5H+Bi+4O=((7×12)+(5×1)+209+(4×16))g/mol=362g/mol

The mass percent of bismuth in C7H5BiO4 is calculated by the formula,

Masspercent=(MassofbismuthMassofC7H5BiO4×100)

Substitute the value of the mass of bismuth and the mass of C7H5BiO4 in the above expression

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