Chemistry, 25.01.2021 22:00, mqturner1989Kedie
In an experiment, potassium chlorate decomposed according to the following chemical equation.
2 KClO3 β 2 KCl + 3 O2
If the mass of potassium chlorate was 240 grams, what is the mass of oxygen gas formed?
Answer Choices:
A)
94.03g
B)
1378g
C)
41.8g
D)
612.5g
Answers: 3
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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
In an experiment, potassium chlorate decomposed according to the following chemical equation.
2 KCl...
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