kanerobertrosss3582 kanerobertrosss3582 Today at 4:46 AM Chemistry Answered 1. a 30.0 ml sample of 0.200 m ba(oh)2 is titrated with 0.100 m hcl. a. determine the ph of the solution before the addition of hcl. b. determine the ph of the solution after the addition of 250 ml hcl.