Question

Problem 2: When a definite mass of NaCl reacts with 9.8 g
H2S04, then 12 g NaHSO4 and 2.75 HCl are obtained
Calculate the mass of NaCl.​

Answer 1

Answer:

4.95 g

Explanation:

mass conservation

let mass of nacl be x

9.8+x=12+2.75

x=4.95

Answer 2

Answer:

4.95 gram

Explanation:

reaction: NaCl+H2SO4-------->NaHS04+HCl

let mass of NaCl be 'x'

as per law of conservation of mass:

x+9.8g-------->12g+2.75g

x-------->14.75g-9.8g

therefore x is 4.95 gram

Mass of NaCl is 4.95 gram