There are two solutions: 2.00% (m/v) chloroform solution and 2.00% (m/m) chloroform solution. What is the difference between them?

2.00% (m/v) chloroform solution contains 2.00 g chloroform per 100. mL chloroform solution, while 2.00% (m/m) chloroform solution contains 2.00 g chloroform per 100. g chloroform solution.

2.00% (m/v) chloroform solution contains 2.00 mg chloroform per 100. mL chloroform solution, while 2.00% (m/m) chloroform solution contains 2.00 mg chloroform per 100. g chloroform solution.

2.00% (m/v) chloroform solution contains 2.00 g chloroform per 1.00 mL chloroform solution, while 2.00% (m/m) chloroform solution contains 2.00 g chloroform per 1.00 g chloroform solution.

2.00% (m/v) chloroform solution contains 2.00 mg chloroform per 1.00 mL chloroform solution, while 2.00% (m/m) chloroform solution contains 2.00 mg chloroform per 1.00 g chloroform solution.