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What is the Mass of 5 Moles of Sodium Carbonate (Na2co3) ? (Atomic Masses : Na = 23 U ; C = 12 U ; O = 16 U) - Science

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Short Note

What is the mass of 5 moles of sodium carbonate (Na2CO3) ?

(Atomic masses : Na = 23 u ; C = 12 u ; O = 16 u)

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Solution

Number of moles of sodium carbonate = 5 moles
Molar mass of sodium carbonate = (2 × 23) + (1 × 12) + (3 × 16) = 106g

We know that 1 mole of sodium carbonate weighs 106g.

Mass of 5 moles of sodium carbonate = 5 × 106 = 530g

Hence, 5 moles of sodium carbonate weigh 530 grams.

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 25 | Page 172

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