Question

find the mole of 6.9gm of Na​

Answer 1

Answer:

1 mole Na contains 23g Na

23g Na = 1 mole of Na

1 g Na = 1/23 moles of Na

4.6g Na = 1/23 x 4.6 = 4.6/23 = 0.2moles

Therefore 0.2 moles are present in 4.6 g of Na

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