Volume of 12.4M HCl would you need to make 500mL of a 3.5 M HCl

141 mL

Explanation:

We can use the simple equation of:

1st Concentration x 1st Volume = 2nd Concentration x 2nd Volume

Input the values in:

12.4M x (1st Volume) = (3.5M)x(500mL)

1st Volume = 141.129

The correct significant figures will make it 141. mL

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.