Answers: 2
Chemistry, 22.06.2019 04:00
You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present
Answers: 1
Chemistry, 22.06.2019 10:00
In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Which the following is an example of an organic compound that contains an attached hydroxyl group? <...
Mathematics, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Biology, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Business, 16.10.2020 17:01
History, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Chemistry, 16.10.2020 17:01
Mathematics, 16.10.2020 17:01
Social Studies, 16.10.2020 17:01
History, 16.10.2020 17:01