1) which of the following can be safely done in a laboratory?
-eating food
...
1) which of the following can be safely done in a laboratory?
-eating food
-tasting the chemicals
-having hair loose
-washing hands
2) you have two clear liquids and you do not remember which is water and which is acid. in this situation, you should smell the contents of both beakers to determine which is the acid and which is the water.
-true
-false
3) in order to conserve materials, laboratory equipment like beakers can be reused, but must be cleaned and washed thoroughly to prevent the mixing of chemicals.
-true
-false
4)what is the correct way to read the volume of a liquid in a graduated cylinder?
-read the lowest part of the meniscus
-read the highest part of the meniscus
-read the middle part of the meniscus, halfway between the highest and lowest parts
-read the middle part of the meniscus and round off to the nearest significant figure
5) a materials safety and data sheet (msds) will describe safety issues and summarize risks for any chemical used in a laboratory.
-true
-false
Answers: 1
Chemistry, 23.06.2019 03:30, alvfran1041
Astudent uses universal ph paper to find the ph of three solutions . solution a has a ph of 5 solution b has a ph of 11 and solution c has a ph of 7 identify which solution is acidic which solution is neutral and which solution is basic
Answers: 1
Chemistry, 23.06.2019 03:40, ElegantEmerald
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
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