Calculate the mass of 3 moles of water: H2O

The answer is 54g of mass

Explanation:

Using the formula

n = m/Mm

n - mole

m - mass

Mm - molar mass

Since we are given the mole of water to be 3

Let's calculate the molar mass of H2O

H is 1

O is 16

Mm = 1* 2+ 16

= 2 + 16

= 18g/mol

Using the formula above,

n = m /Mm

n = 3

m = we are looking for

Mm = 18g/mol

3 = m / 18

so, m = 18*3

= 54g

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