Mass of the Graduated Cylinder
(only air)(g) Mass of the Graduated Cylinder with
Water (g) Ca...
Chemistry, 22.02.2021 20:40 dazesreplayy2451
Mass of the Graduated Cylinder
(only air)(g) Mass of the Graduated Cylinder with
Water (g) Calculated Mass of Water (g)
73.7 73.7 0.0
A student collected the above data for this experiment. What error did he make? Explain.
Answers: 3
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
Chemistry, 22.06.2019 16:40
Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
Answers: 3
Chemistry, 22.06.2019 23:00
The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3– expt. # [s2o82–] (m) [i –] (m) initial rate 1 0.038 0.060 1.4 × 10 – 5 m/s 2 0.076 0.060 2.8 × 10 – 5 m/s 3 0.076 0.030 1.4 × 10 – 5 m/s the rate law for this reaction must be:
Answers: 1
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