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How Many Moles of Calcium Carbonate (Caco3) Are Present in 10 G of the Substance ? (Ca = 40 U ; C = 12 U ; O = 16 U) - Science

Short Note

How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 u)

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Solution

Mass of calcium carbonate = 10g

Molecular mass of calcium carbonate = (1 × 40) + (1 × 12) + (3 × 16) = 100g

Number of moles in 100g of calcium carbonate = 1 mole

Therefore, number of moles in 10g of calcium carbonate is 0.1.

Concept: Mole Concept
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APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Short Answers | Q 15 | Page 172
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