Chemistry, asked by amitosh17, 5 months ago

(ii) How many moles of NaCl are present in 20 g of the substance?
[Atomic mass of Na = 23, Cl = 35.5 u]​

Answers

Answered by yashika8832
6

Answer:

Molar mass of NaCl = 23+ 35.5 = 58.5

58.5g of NaCl = 1 mole of NaCl

20g of NaCl =

 \frac{20}{58.5}  = 0.34

thus 0.34 moles of NaCl are present in 20g of the substance

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