Question

Number of moles of HCl in 73 g of HCl is ___________

a) 1

b) 3

c) 2

d) 4​

Answer 1

Answer:

36 g of HCL =1 mol

73 g of HCL=73/36

=2.027 mol

hence, number of moles = 2.027

Answer 2

Answer: 2

Explanation:

The atomic mass of HCl will be 1+35.5

36.5 u

Molar mass of a substance in simply the atomic mass in grams

So, Molar Mass of HCl will be 36.5 g

No. Of moles = Given Mass/Molar Mass

Moles = 73g/36.5g

Moles - 2