Chemistry, 20.07.2020 05:01 hsjsjsjdjjd
Add exactly 5.00 mL of 0.0400 M stock CuSO4 solution directly into the evaporating dish. Set a 250-mL beaker, Add 100 mL of water.
Data for Part I
Mass of empty dish 32.470 g empty dish
Volume of 0.0400 M solution 5.00 mL CuSO4 solution
Mass of dish and 0.0400 M solution 37.497 g dish and solution
Mass of dish and CuSO4 solid 32.503 g dish and CuSO4 solid
Calculations for Part I
1. Calculate the mass of solution
2. Calculate the mass of solid CuSO4 dissolved in the solution.
3. Calculate the number of moles of solid CuSO4 dissolved in the solution.
4. Calculate the mass of water evaporated from the solution.
5. Calculate the density of solution, (g solution/mL solution).
6. Calculate the % by mass, CuSO4 in solution (100 x g CuSO4/g solution).
7. Calculate the molality of solution (moles CuSO4/kg solvent).
8. Calculate the molarity of solution (moles CuSO4/L solution).
9. Given that the true molarity is 0.0400 M, calculate the percent error of your result.
Answers: 2
Chemistry, 21.06.2019 15:50
Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2 + h2cucl2 + na2s → 2nacl + cuscaco3 → cao + co2 2zns + 3o2 → 2zno + 2so2 ch4 + 2o2 → co2 + 2h2o
Answers: 3
Chemistry, 22.06.2019 01:30
Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -
Answers: 3
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Add exactly 5.00 mL of 0.0400 M stock CuSO4 solution directly into the evaporating dish. Set a 250-m...
Mathematics, 02.10.2019 00:30
Mathematics, 02.10.2019 00:40
History, 02.10.2019 00:40
Mathematics, 02.10.2019 00:40
Biology, 02.10.2019 00:40
History, 02.10.2019 00:40
History, 02.10.2019 00:40
Mathematics, 02.10.2019 00:40