Chemistry, 15.01.2020 06:31, keriyannafultz
You dissolve 0.476 g of naoh in 2.00 l of a buffer solution that originally had [h2po4-] = [hpo42-]= 0.132 m. look up the ka value in your text. a. what is the ph of the buffer solution before addition of the sodium hydroxide? ph = b. what is the concentration of dihydrogen phosphate after addition of the sodium hydroxide? [h2po4-] = m c. what is the concentration of the hydrogen phosphate after addition of the sodium hydroxide? [hpo42-] = m d. what is the ph of the buffer solution after addition of the sodium hydroxide? ph =
Answers: 1
Chemistry, 22.06.2019 09:00, hellodarkness14
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 3
Chemistry, 22.06.2019 13:50, amandamac7339
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
You dissolve 0.476 g of naoh in 2.00 l of a buffer solution that originally had [h2po4-] = [hpo42-]=...
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