Question

Number of moles of sodium in 6.9 x 10-2 kg of sodium

Answer 1

Answer:

Explaination∶

moles=given mass/molecular mass

so, moles=6.9x10-2kg/23x10-3kg

Answer 2

Answer:

answer is 300moles

Explanation:

As we know the formula that no. of moles=given wt /molecular wt.

6.9×10-2/23×10-3=300 moles