Calculate the number of moles of HCl present in 20cm3 of a 0.75M solution of the acid

Assessment: JAMB UTME - Chemistry - 2007 Subject: Chemistry

Question 1 Report

Calculate the number of moles of HCl present in 20cm3 of a 0.75M solution of the acid
Answer Details
To calculate the number of moles of HCl, we need to use the formula: moles = concentration x volume We are given the volume of the solution as 20 cm^3, and the concentration as 0.75 M. First, we need to convert the volume to liters: 20 cm^3 = 20/1000 L = 0.02 L Then we can plug in the values: moles = 0.75 M x 0.02 L = 0.015 moles Therefore, the number of moles of HCl present in the solution is 0.015 mole. So the correct option is 0.015 mole.
Read lesson note on Stoichiometry And Chemical Reactions (WAEC)
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