Chemistry, 11.10.2019 01:00, Drellibus70011
Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (ph level) was measured. the mean and standard deviation of the values are 5.3 and 1.5 respectively. when the ph meter was recalibrated back at the laboratory, it was found to be in error. the error can be corrected by adding 0.2 ph units to all of the values and then multiply the result by 1.2. find the mean and standard deviation of the corrected ph measurements.
Answers: 3
Chemistry, 22.06.2019 00:30, megaaan214p61pb7
Which compounds have the empirical formula ch2o? a. c2h4o2 b. c3h6o3 c. ch2o2 d. c5h10o5 e. c6h12o6
Answers: 3
Chemistry, 22.06.2019 02:40, gabrielolivas59
The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
Answers: 3
Rainwater was collected in water collectors at thirty different sites near an industrial basin and t...
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