Answer:
Number of moles = 0.04 mol
Step-by-step explanation:
Given data:
Mass of water lost = 0.7 g
Number of moles = ?
Solution:
Number of moles = mass/molar mass
Molar mass of water = 18 g/mol
Now we will put the values in formula:
Number of moles = mass/molar mass
Number of moles = 0.7 g/ 18 g/mol
Number of moles = 0.04 mol