EmSAT EmSAT Chemistry 5

Question 1

What is the pH of a strong acid with [H⁺] = 0.01 M?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 2

What happens when a weak acid dissolves in water?

Accepted Answer

It partially ionizes, reaching equilibrium

Answer

It fully ionizes

Answer

It does not react with water

Answer

It forms a precipitate

Question 3

What is a buffer solution?

Accepted Answer

A solution that resists changes in pH when small amounts of acid or base are added

Answer

A solution with pH = 7

Answer

A strong acid solution

Answer

A solution with no ions

Question 4

In a titration, what is the equivalence point?

Accepted Answer

When moles of acid equal moles of base

Answer

When the indicator changes color

Answer

When the pH equals 7

Answer

When the solution turns red

Question 5

What is the conjugate base of H₂CO₃?

Accepted Answer

HCO₃⁻

Answer

H₃O⁺

Answer

CO₃²⁻

Answer

OH⁻

Question 6

What type of reaction is HCl + NaOH → NaCl + H₂O?

Accepted Answer

Neutralization

Answer

Combustion

Answer

Decomposition

Answer

Precipitation