Question

How many moles are present in 4.6 grams of Na?​

Answer 1

Atomic mass of Na = 23

No. of moles=

$\frac{given \: mass}{atomic \: mass}$

$= \frac{4.6g}{23g}$

= 0.2 moles

Answer 2

Heyaa☺

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Given,

Mass = 4.6g

Atomic mass of sodium - Na is 23g.

We know that,

=》 Mass / atomic mass.

=》 4.6 / 23

=》 0.2

0.2 moles are present in 4.6 grams of Na.

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Hope you understand..✌