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Question

How many moles are present in 5.3g of anhydrous sodium carbonate?

A
0.03 moles
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B
0.04 moles
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C
0.05 moles
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D
0.01 moles
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Solution

The correct option is A 0.05 moles
given that
5.3gNa2CO3
atomic mass =2×23+12+3×16
=106g/mol
Moles =gramweightatomicmass
=5.3106=0.05moles

1106220_517280_ans_672369fe88ab4400ab848e9e1537683b.jpg

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