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Chemistry, 22.06.2019 22:00
4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.
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Chemistry, 23.06.2019 21:40
Hydrochloric acid reacts with barium hydroxide according to the equation: 2 hcl (aq) + ba(oh)2 (aq) β bacl2 (aq) + 2 h2o (l) Ξ΄h = -118 kj calculate the heat (in kj) associated with the complete reaction of 109 grams of hcl (aq).
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Chemistry, 23.06.2019 22:30
Acompound consisting of b, n, and h undergoes elemental analysis. the % composition by mass is found to be 40.28% b, 52.20% n, and 7.53% h. what is the empirical formula for this molecule? enter in the empirical formula in the form bxnyhz
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