Question

. How many moles are there in 200 g of Na?​

Answer 1

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Molecular mass of Na=23g/mole

No. of mole= molarmass/mass

In 200g of Na moles is

n= 200g/23g/mole

so,

n=8.69moles of Na or also sodium

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Answer 2

Answer:

Moles = Given mass ÷ Molecular Mass

Atomic mass of sodium = 23

Moles = 200÷23

Moles = 8.70