Chemistry, 23.09.2019 03:50 victoria6929
More molarity practice1. how many grams of sodium chloride are contained in 250. ml of 0.100 m nacl? 2. concentrated ammonia contains 26 g per 100 ml of solution. what is the molarity of this solution? 3. what volume of 0.275m ba(oh)2 must be used to have 8.65 g of barium hydroxide? 4. what is the concentration of all ions present in a solution that is 0.250 m alcl3? 5. what mass of solute would be needed to prepare 125 ml of 0.188 m sodium phosphate? 6. determine the volume of 1.55 m silver nitrate that contains 4.22 g of solute.7. what mass of ammonium sulfate is contained in 250 ml of 0.779 m solution? 8. what is the molarity of a solution that is prepared by dissolving 48.6 g of sodium carbonate in enough water to make 125 ml of solution? 9. what volume of 0.88 m potassium chromate contains 0.32 moles of potassium ions? 10. what volume of 0.200 m calcium nitrate contains 8.33 g of solute?
Answers: 1
Chemistry, 22.06.2019 13:00
One of the hopes for solving the world's energy problem is to make use of the fusion reaction 21h +31h --> 42he + 10n + energy how much energy is released when 1 mol of deuterium is fused with 1 mol of tritium according to the above reaction? the masses of the atoms and the neutrons are as follows: 21h = 2.0140 amu 31h = 3.01605 amu 42he = 4.002603 amu 10n = 1.008665 amu. the speed of light is 2.9979 x 108 m/s.
Answers: 1
Chemistry, 22.06.2019 14:30
An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.
Answers: 3
Chemistry, 22.06.2019 21:20
40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume
Answers: 3
More molarity practice1. how many grams of sodium chloride are contained in 250. ml of 0.100 m nacl?...
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