A sample of grape juice has a hydroxide ion concentration of 1.4×10^−1 M. Is the grape juice more or less acidic than a sample of orange juice that has a hydronium ion concentration of 1.8×10^−4M? Calculate the pH of the orange juice from its hydronium ion concentration. Round to the nearest tenth. When you compare the two solutions, which is more acidic?
a. Grape juice is more acidic.
b. Orange juice is more acidic.
c. They have the same acidity.
d. Cannot be determined until observed.