Question

0.2 mole of the sodium chloride require how many gram?

Answer 1

the molecular weight of back is 58.45

no. of moles = given weight / molecular weight

0.2 = given weight / 58.45

given weight = 11.69 gram

Answer 2

molar mass of NaCl is 58.5g

mole is 2/10

given mass=?

moles = given mass / molar mass

2/10 =m/58.5

m=11.7g