Question

A scientist in a chemistry lab wants to make salt of pH 5.5 using acid and base. The table shows
the acid and base present in the lab.
1 HCl
2 NaOH
3 H2CO3
4 NH4OH
5 CH3COOH
Which of the acid and base he should use for the reaction?
(a) HCl and NaOH ( b) H2CO3 and NaOH (c) HCl and NH4OH (d) CH3COOH and NaOH

Answer 1

Answer:

HCL AND NH4OH

Explanation:

BECAUSE HCL IS A STRONG ACID AND NH4OH IS A WEAK BASE, THIS IS BECAUSE THE PH GIVEN IS 5.5 WHICH IS ACIDIC

Answer 2

pH 5.5 acid should be used in (C) HCL and $NH_{4}$OH reaction.

Explanation:

• HCL is the stronger Acid weak base value.

• The HCL Acid is base value in less then pH 7.So that is the stronger acid and react this equation.
• $NH_{4}$OH is the Stronger Acid and weak base value pH value is 5.5 which is the acidic.
• Because of use in the chemistry lab in scientist in present the lab in acid in HCL and $NH_{4}$OH.