Question

How many
a) H+ ions (1 g-ion/L = 6.023 x 1023 ions/L) and
b) OH- ions are present in 250 ml of a solution of pH 3?

Answer 1

pH = 3 means (H^+) = 0.001 M or 10^-3 M
That is 0.001 mols/L so in 250 mL you have just 1/4 of that = 0.001 x (250/1000) = ?
# H^+ = ? from the line above x 6.02E23 = ??

Answer 2

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