The mercury content of a stream was believed to be above the minimum considered safe—1 part per billion (ppb) by weight. an analysis indicated that the concentration was 0.68 parts per billion. what quantity of mercury in grams was present in 15.0 l of the water, the density of which is 0.998 g/ml? (1 ppb hg = 1 ng hg ) 1 g water
Answers: 1
Chemistry, 22.06.2019 06:00
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
Chemistry, 22.06.2019 07:40
21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8
Answers: 2
Chemistry, 22.06.2019 19:00
Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2
Answers: 3
Chemistry, 23.06.2019 00:30
If there are 3.5 moles of koh, how many moles of naoh can be produced? question 1 options: a)3.0 moles naoh b)3.5 moles naoh c)1 moles naoh d)9 moles naoh
Answers: 1
The mercury content of a stream was believed to be above the minimum considered safe—1 part per bill...
Physics, 18.03.2021 01:30
Computers and Technology, 18.03.2021 01:30
Mathematics, 18.03.2021 01:30
Mathematics, 18.03.2021 01:30
Chemistry, 18.03.2021 01:30
Mathematics, 18.03.2021 01:30
Chemistry, 18.03.2021 01:30
Health, 18.03.2021 01:30
Geography, 18.03.2021 01:30
Biology, 18.03.2021 01:30
Mathematics, 18.03.2021 01:30
English, 18.03.2021 01:30
Mathematics, 18.03.2021 01:30