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Chemistry, 20.04.2021 18:30 sleepyboy29
Which would have the highest freezing point? A. 2m of NaCl in water. B. 4m of NaCl in water. C. 2m of MgCl3 in water. D. 1.5m of BeCl2 in water.
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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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Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest
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Which would have the highest freezing point? A. 2m of NaCl in water. B. 4m of NaCl in water. C. 2m o...
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