Question

q1. a solution must be made such that for every 2 parts serum there is a total of 8 parts solution. if the total volume is to be 300 ml, how much serum is needed? please show all of your work clearly

Explanation:

Step1: Determine the ratio of serum

The ratio of serum to the total solution is $\frac{2}{8}=\frac{1}{4}$.

Step2: Calculate the volume of serum

Multiply the total volume by the ratio of serum. So, the volume of serum $V = 300\times\frac{1}{4}= 75$ mL.

Answer:

75 mL