Question

What mass of sodium chloride would be decomposed by $9.8g$of sulphuric acid if 12 g of sodium bisulphate and $2.75$ g of hydrogen chloride were produced in a reaction?

• A. $14.75g$
• B. $3.8g$
• C. $4.95g$
• D. $2.2g$

Answer 1

Answer: (C)

$4.95g$

Answer 2

(3) : $\underset{x}{NaCl} + \underset{9.8g}{H_{2}SO_{4}} \rightarrow \underset{12g}{NaHSO_{4}} + \underset{2.75g}{HCl}$

X+9.8=12+2.75

X = $4.95g$