Chemistry, 03.03.2020 05:00 patricialeon244
If you find that the hydrogen alpha line in a star’s spectrum occurs at a wavelength of 656.45 nm, what is the star’s approximate radial velocity? Note that the rest wavelength of this line is 656.30 nm.
Answers: 1
Chemistry, 22.06.2019 14:30
Chemistry worksheet - i am not sure what they are asking for exactly?
Answers: 1
Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
Chemistry, 22.06.2019 19:10
Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .
Answers: 2
Chemistry, 23.06.2019 02:00
Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?
Answers: 1
If you find that the hydrogen alpha line in a star’s spectrum occurs at a wavelength of 656.45 nm, w...
Advanced Placement (AP), 29.11.2021 03:40
Mathematics, 29.11.2021 03:40
Mathematics, 29.11.2021 03:40
Biology, 29.11.2021 03:50
Biology, 29.11.2021 03:50
Mathematics, 29.11.2021 03:50
History, 29.11.2021 03:50
History, 29.11.2021 03:50
Geography, 29.11.2021 03:50
Mathematics, 29.11.2021 03:50
English, 29.11.2021 03:50
Law, 29.11.2021 03:50
Mathematics, 29.11.2021 03:50