Chemistry, 29.01.2021 17:40, bg988763p7cl2d
Determine the mass of oxygen that is needed to react with 33 grams of phosphorus.
4P + 5 02 → 2 P205
A
27.3 grams O2
B
1.33 grams 02
С
213 grams 02
oo
42.6 grams 02
Answers: 1
Chemistry, 22.06.2019 18:00, kyllow5644
Answer asap need to be answered 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: 3
Determine the mass of oxygen that is needed to react with 33 grams of phosphorus.
4P + 5 02 → 2 P20...
Mathematics, 11.02.2021 09:40
Chemistry, 11.02.2021 09:40
Mathematics, 11.02.2021 09:40
Mathematics, 11.02.2021 09:40
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Mathematics, 11.02.2021 09:40