Calculate the molarity of a solution made by adding 36.0 mL36.0 mL of concentrated hydrochloric acid ( 37.337.3 % by mass, density 1.19 g/mL1.19 g/mL ) to some water in a volumetric flask, then adding water to the mark to make exactly 2000 mL2000 mL of solution. (It is important to add concentrated acid or base to water, rather than the other way, to minimize splashing and maximize safety.)

The molarity is 0.22 M.

Explanation:

The molarity of a solution can be calculated as follows:

Where:

n: is the number of moles

V(T): is the total volume = 2000 mL = 2 L  

M: is the molar mass = 36.46 g/mol      

m: is the mass

The mass of HCl can be found using the following equation:

Where:

d: is the density = 1.19 g/mL

V: is the volume = 36.0 mL  

% = 37.3 % by mass = 0.373    

Hence, the molarity is:

Therefore, the molarity is 0.22 M.

I hope it helps you!

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

the answer is 0.8m.

by: nicholas