MCAT Question of the Day 219– General Chemistry What is the percent, by mass of water, in the hydrate MgCl2. 5H2O?27%36%49%52%Vote to see resultsVote By admin| 2016-03-01T01:21:12+00:00 March 1st, 2016|Comments Off on MCAT Question of the Day 219– General Chemistry Share This Story, Choose Your Platform! FacebookTwitterGoogle+Email