Answer:
The final pressure of the gas is 370. kPa
Explanation:
Let's assume the gas inside cylinder behaves ideally.
As amount of gas remains constant in both state therefore in accordance with combined gas law for an ideal gas-
where and are initial and final pressure respectively.
and are initial and final volume respectively.
and are initial and final temperature in kelvin scale respectively.
Another assumption is necessary to solve this problem which is the process should be isothermal.
So , , and
Hence
So the final pressure of the gas is 370. kPa
Answer:pKa between 6 and 8
b. highly water soluble
c. minimally permeable to biological membranes
d. minimal effects of salt concentration
Explanation:
Since most biological reactions occur at near neutral pH of 6-8, good buffers should have their pKa around this region. A good buffer must also be water soluble and not easily permeable to biological membranes to avoid to avoid accumulation of the buffer compound in cells. The buffer should also not be highly ionic to prevent issues due to salt effects.
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Answer:
I think Letter E is my answer