Chemistry, 29.07.2019 02:30 treestump090
Aray in the emission spectrum has a wavelength of 3.10 x 1014 meters. given that the speed of light is 2.998 x 108 m/s, what is the frequency of the ray? a. 0.967 x 10-6 hz b. 9.2938 x 10-7 hz c. 0.967 x 10-5 hz d. 9.2938 x 107 hz
Answers: 2
Chemistry, 22.06.2019 01:30
Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .
Answers: 3
Chemistry, 22.06.2019 05:30
Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases
Answers: 2
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 12:00
A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?
Answers: 1
Aray in the emission spectrum has a wavelength of 3.10 x 1014 meters. given that the speed of light...
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