Question

Gastric juice contains 3.0g of $HCl$ per litre. If a person produces 2.44 litre of gastric juice per day. How many antacid tablets each containing 400 mg of $Al$($OH{)}_3$ are needed to neutralize all the $HCl$ produced in one day? Choose the nearest answer.

• A. 18
• B. 13
• C. 20
• D. 17

Answer 1

The correct option is B

13

geq of $HCl$ = $\frac{3}{36.5}2.44\approx 0.2$ = geq of $Al$($OH{)}_3$

Weight of $Al(OH{)}_3$ = $\frac{0.2\times 78}{3}$ = $5.2g$ = $5200mg$

No. of tablets =$\frac{5200}{400}$ = $13$