Mathematics

Problem

32. Acid Mixture Suppose that

x \mathrm{~mL}

of pure acid are added to 100 mL of a

35 \%

acid solution. (a) Express the concentration

C(x)

of the new mixture as a function of

x

. (b) Use a graph to determine how much pure acid should be added to the

35 \%

solution to produce a new solution that is

75 \%

acid. (c) Solve (b) algebraically.