Question

mass of 1.5 moles of water

Answer 1

Given:

Number of moles of water = 1.5

To find:

Mass of 1.5moles of water

Formula to be used:

Mass = Molar mass × Number of moles

Calculation:

As the given compound is water, its molar mass must be calculated. The step involved in calculation is as follows:

Molar mass of $H_2O$ = 2(H)+1(O)

Molar mass of $H_2O$ = 2(1) + 1(16)

Molar mass of $H_2O$ = 2+16

Molar mass of $H_2O$ = 18

∴ The molar mass of $H_2O$ is 18g/mol

Substituting this in the following formula it gives

Mass = Molar mass × No. of moles

Mass = 18 × 1.5

Mass = 27g

Conclusion:

Thus it can be inferred that the mass of 1.5 moles of water is 27g.

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Answer 2

mass of I atom of water=

H2O=2 X 1H6

=18

Mass of 1.5 mole of water

1.5X18=

27 g