Question

For each of the following acid-base reactions, calculate how many grams of each acid are necessary to completely react with and neutralize 2.4 g of the base.HCl(aq)+NaOH(aq)→H2O(l)+NaCl(aq)

Answer 1

Answer:

$m_{HCl}=2.19gHCl$

Explanation:

Hello,

In this case, for the reaction between hydrochloric acid and sodium hydroxide, for 2.4 g of base, we can compute the neutralized grams of acid by applying the 1:1 molar ratio between them and their molar masses, 36.45 g/mol and 40 g/mol respectively as shown below by stoichiometry:

$m_{HCl}=2.4gNaOH*\frac{1molNaOH}{40gNaOH}*\frac{1molHCl}{1molNaOH}*\frac{36.45gHCl}{1molHCl}\\ \\m_{HCl}=2.19gHCl$

Best regards.