Find out the mass of hydrochloric acid that will react with 20g of sodium hydroxide

18.25g

Explanation:

First, we need to generate the equation for the reaction between hydrochloric (HCl) acid and sodium hydroxide (NaOH). The equation is given below:

HCl + NaOH - > NaCl + H2O

Next we determine the molar mass of HCl and NaOH as shown below

MM of HCI = 1 + 35.5 = 36.5g/mol

MM of NaOH = 23 + 16 + 1 = 40g/mol

From the equation,

36.5g of HCl reacted with 40g of NaOH.

Therefore, Xg of HCl will react with 20g of NaOH i. e

Xg of HCl = (36.5 x 20) / 40 = 18.25g

Therefore 18.25g of HCl will react with 20g NaOH