Prepare 16 oz of a 0.25% sodium hypochlorite solution from a 0.5% sodium hypochlorite solution. Use sterile water as the solvent.

Question

Quizplus · Accepted Answer

The Answer is 16 oz = 480 mL; may use 500 mL
0.25% of 0.5% = x mL : 500 mL remember % means "per 100, in this case 100 mL"
0.25 mL : 0.5 mL = x mL : 500 mL
0.5x = 125 mL
x = 250 mL
250 mL of 0.5% sodium hypochlorite added to 250 mL of water to make 0.25% sodium hypochlorite solution.

Prepare 16 Oz of a 0