Asystem undergoes a two-step process. in step 1, it absorbs 50. j of heat at constant volume. in step 2, it releases 5j of heat at 1 atm. as it returned to its original internal energy. find the change in the volume of the system during the second step and identify it as an expansion or compression.
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Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.
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What is the approximate vapor pressure when the gas condenses at 70 degrees celsius
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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
Asystem undergoes a two-step process. in step 1, it absorbs 50. j of heat at constant volume. in ste...
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