Question

what is the mass of 0.2 moles of sodium carbonate​

Answer 1

Answer:

21.2 grams

Explanation:

Molar mass of Na is 23

Molar mass of carbon is 12

Molar mass of oxygen is 16

molar mass of NaCo3 = (23×2+12+16×3)

= 106

Weight per 1 mole is 106

so mass = Molar mass × 1 mole mass

= 0.2×106

= 21.2g

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