Chemistry, 09.07.2019 12:00 carapiasebas
(a) a sample of solid ca(oh)2 is stirred in water at 30°c until the solution contains as much dissolved ca(oh)2 as it can hold. a 100.-ml sample of this solution is withdrawn and titrated with 5.00 10-2 m hbr. it requires 48.8 ml of the acid solution for neutralization. what is the molarity of the ca(oh)2 solution?
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
(a) a sample of solid ca(oh)2 is stirred in water at 30°c until the solution contains as much dissol...
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