Question

What is the mass of 0.25 moles of water? Question 7 options: C 0.258 C4.58 C188 128

Answer 1

4.5 g

Step-by-step explanation:

Given,

Moles of water = 0.25 moles

Molar mass of water (
`H_2O`) =
`2* 1+1* 16` = 18 g/mol

The formula for the calculation of moles is shown below:

`moles = (Mass\ taken)/(Molar\ mass)`

Thus,

`0.25\ moles= (x)/(18\ g/mol)`

Mass of water in 0.25 moles = 4.5 g