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Chemistry, 01.04.2021 01:00 milkshakegrande101
Suppose Zn metal is completely consumed in an HCl solution to produce zinc (II) choride (ZnCl2) and hydrogen gas (H2) according to the following reaction:
Zn + 2HCl > ZnCl2 + H2
How many moles of ZnCl2 are produced if you start with 7.32 moles of HCl?
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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.
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Suppose Zn metal is completely consumed in an HCl solution to produce zinc (II) choride (ZnCl2) and...
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