Chemistry, 30.07.2019 10:00 jokihahorton510
Asample of gold (au) has a mass of 45.39 g. a. what is the molar mass of gold? b. calculate the number of moles of gold (au) in the sample. show your work. c. calculate the number of atoms of gold (au) in the sample. show your work.
Answers: 1
Chemistry, 21.06.2019 22:30, kingteron5870
Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?
Answers: 1
Chemistry, 22.06.2019 22:00, jlegrand9098
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.
Answers: 2
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