Chemistry, 02.04.2020 19:57 dbn4everloved8
What is the enthalpy change when 29.5 grams of Cl2(g) reacts with excess hydrogen? H2(g) + Cl2(g) → 2HCl(g), ΔH° = -186 kJ
Answers: 3
Chemistry, 22.06.2019 00:00
The pressure in a fluid is affected by which characteristics of that fluid
Answers: 1
Chemistry, 22.06.2019 03:30
If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.
Answers: 1
Chemistry, 22.06.2019 13:00
Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
What is the enthalpy change when 29.5 grams of Cl2(g) reacts with excess hydrogen? H2(g) + Cl2(g) →...
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