Chemistry, 25.08.2021 04:40 Isabelcastillox9096
For the following, round off each number to three significant digits, and then express it in scientific notation.
1) 3.478
2) 65.345
3) 4444
4) 3.1416
5) 55555
6) 45.35455
Answers: 1
Chemistry, 21.06.2019 17:50
Which best describes why nh4+ can form an ionic bond with cl-?
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Chemistry, 22.06.2019 00:40
1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /
Answers: 3
Chemistry, 22.06.2019 10:30
If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5
Answers: 1
For the following, round off each number to three significant digits, and then express it in scienti...
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