Question

No of moles of 90 g of water is? ​

Answer 1

Given ,

• Mass of water (m) = 90 g

So , the molar mass of water will be

$\tt \implies1 × (2) + 16$

$\implies \tt2 + 16$

$\tt \implies18 \: \: g/mol$

Now ,

$\boxed{ \tt{Number \: of \: mole = \frac{Given \: mass}{Molar \: mass} }}$

Thus ,

Number of mole = 90/18

Number of mole = 5

∴ The number of mole is 5