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Chapter 3: Q20P (page 131)

Calculate each of the following:

  1. Mass fraction of C in cesium acetate
  2. Mass fraction of O in uranyl sulfate trihydrateUO22+

Short Answer

Expert verified
  1. Mass fraction of C is 0.125
  2. Mass fraction of O is 0.343

Step by step solution

01

Definition of Mass 

A property that reflects the quantity of matter within a sample is defined as mass

02

Calculations of mass fraction of C in cesium acetate

The molar mass of cesium acetate is 191.96gmol

Mass fraction of C=2molC(12.01gCmolC)191.96gCH3CO2Cs

Mass fraction of C is 0.125.

03

Determination of mass fraction of O in uranyl sulfate trihydrate

The molar mass of uranyl sulfate trihydrate is 420.16gmol

Mass fraction of O O=9molO(16.00gOmolO)420.16gUO2SO4.3H2O

Mass fraction of O is 0.343.

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