Chapter 12.6, Problem 1.1ACP

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Chapter
Section

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

# What mass of lithium can be obtained from 73 million metric tons of lithium carbonate? (1 metric ton = 1000 kg.)

Interpretation Introduction

Interpretation:

The mass of lithium has to be calculated.

Concept introduction:

Mass of the compound is calculated by using following formula,

Mass = number of moles × molar mass

Explanation

The lithium carbonate equation is given below,

Â Â Li2CO3â†’2Li++Â CO32-

One mole of lithium carbonate gives two mole of lithium. To calculate the number of moles of lithium carbonate,

Numberâ€‰ofâ€‰molesÂ =Â massmolarâ€‰massNumberâ€‰ofâ€‰molesÂ =Â 73Â millionÂ metricÂ 73.891Numberâ€‰ofâ€‰molesÂ =Â 73Ã—â€‰101373.891Numberâ€‰ofâ€‰molesÂ =Â 9.879â€‰Ã—â€‰1012â€‰molesoneâ€‰moleâ€‰ofâ€‰lithiumâ€‰carbonateâ€‰isâ€‰correspondsâ€‰toâ€‰twoâ€‰moleâ€‰ofâ€‰lithium,therefore,Numberâ€‰ofâ€‰molesÂ =Â 2â€‰Ã—9.879â€‰Ã—â€‰1012â€‰molesNumberâ€‰ofâ€‰molesÂ =Â 1

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