Question

Find the molarity of [H+] and [OH-] in the following solutions:

a) 0.050 molar NaOH
b) 2.09g of calcium hydroxide in 100 mL of water
c) 0.875 M H2SO4

Answer 1

a)(OH^-) = 0.05.
(H^+)(OH^-) = Kw = 1E-14. Substitute and solve for (H^+)
b) Convert grams Ca(OH)2 to mols, convert that to mols (OH^-), then follow part a.

Answer 2

Thanks!