Chemistry, 16.04.2020 22:22, genyjoannerubiera
A 255 sample of nitrogen (N 2 ) was collected over water at 21 degrees C at a pressure of 745 mm Hg. Calculate the moles of the gas. Calculate the mass of the gas
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Chemistry, 22.06.2019 16:50, TrueKing184
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
Chemistry, 23.06.2019 16:20, kristalmakhija
Which of the following subject areas contains questions that can be answered by science? alchemy ethics forensics politics
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A 255 sample of nitrogen (N 2 ) was collected over water at 21 degrees C at a pressure of 745 mm Hg....
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