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Chemistry, 02.09.2019 19:10, DaylaReevaFEEVA2757
Consider this question: what mass of concentrated solution nitric acid( 68.0% hno3 by mass) is needed to prepare 400.0 g of a 10.0% solution of hno3 by mass?
(a) outline the steps necessary to answer the question
(b) answer the question
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Chemistry, 22.06.2019 18:00, jeepjose58
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
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