Question

If the following solutions are mixed, is the resulting solution acidic, basic, or neutral?60.0 mL of 0.0500 M HClO4 and 40.0 mL of 0.0750 M NaOH

Answer 1

The resulting solution will be neutral.

Step-by-step explanation

Given:

Volume of HClO4 = 60.0 mL = 0.06 L

Molarity of HClO4 = 0.0500 M

Volume of NaOH = 40.0 mL = 0.04 L

Molarity of NaOH = 0.0750 M

What to find:

To determine if the resulting solution from (HClO4 and NaOH) acidic, basic, or neutral.

Solution;

The first step is to write a balanced chemical equation for the reaction.

HClO4 + NaOH → NaClO4 + H2O

The reaction is a neutralization reaction (also a double displacement reaction). The strong acid (HClO4) and a strong base react to produce salt (NaClO4) and water (H2O).

The next step is to determine the moles of the acid and the base using the formula below:

`\begin{gathered} Moles=Molarity* Volume\text{ }in\text{ }L \\ \\ For\text{ }HClO_4: \\ \\ Moles=0.0500M*0.06L=0.003\text{ }mol \\ \\ For\text{ }NaOH: \\ \\ Moles=0.0750M*0.04L=0.003\text{ }mol \end{gathered}`

From the balanced chemical equation, 1 mol HClO4 neutralized 1 mol NaOH.

Therefore, 0.003 mol HClO4 will completely neutralize 0.003 mol NaOH and the resulting solution will be neutral.