A stock solution of 12.0 M sulfuric acid is made available. What is the best procedure to make up 100. mL of 4.0 M sulfuric acid using the stock solution and water prior to mixing?
(A)Add 33.3 mL of water to the flask, and then add 66.7 mL of 12.0 M acid. (B)Add 33.3 mL of 12.0 M acid to the flask, and then dilute it with 66.7 mL of water. (C)Add 67.7 mL of 12.0 M acid to the flask, and then dilute it with 33.3 mL of water. (D)Add 67.7 mL of water to the flask, and then add 33.3 mL of 12.0 M acid.
D