Chemistry, 25.11.2021 08:50 monstergirl25
1. (4 pts.) In 2018 the Michigan Department of Environment, Great Lakes, and Energy
tested the water in 30 homes in Benton Harbor, MI. Eight out of 30 of the homes tested
had Pb2+ concentrations higher than 15 ppb. Remember a ppb is one microgram per
liter (1 ug/L). Change 15 ppb of Pb2+ into g/L and moles/L. Show all your work below!
Answers: 3
Chemistry, 22.06.2019 06:00, giusto1894
24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm
Answers: 2
Chemistry, 22.06.2019 13:00, devontemiles8868
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, 23.06.2019 08:50, leah5981
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas. caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible. relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
1. (4 pts.) In 2018 the Michigan Department of Environment, Great Lakes, and Energy
tested the wat...
Mathematics, 16.10.2020 19:01
Mathematics, 16.10.2020 19:01
History, 16.10.2020 19:01
History, 16.10.2020 19:01
Mathematics, 16.10.2020 19:01
Arts, 16.10.2020 19:01