How many grams are in 1 L of a 1:200 solution?

2.5g
5g
7.5g
9.5g

5g

Rationale: There are 5g in 1 L of a 1:200 solution. To calculate, remember that 1:200 is a ratio, and 1 L = 1000 mL. Convert the ratio 1:200 to a fraction, 1/200 . Express the answer as a decimal (0.05). This is a W/V problem, and can be solved by using the following: FV (1000 mL) x Percent as a decimal (0.005) = Amount AI (5g).