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DanielleElmas [232]
3 years ago
10

Jose’s lab instructor gives him a solution of sodium phosphate that is buffered to a pH of 4. Because of an error that he made w

hile calibrating the pH meter, Jose’s measurements of the pH of the sodium phosphate solution are 5.4, 5.4, and 5.4. Which statement best describes his results?
Physics
1 answer:
Kazeer [188]3 years ago
7 0
I am thinking that maybe the problem is not with the calibration. It might be that the buffered solution is already expired since at this point the solution is already not stable and will give a different pH reading than what is expected.
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Answer:

Explained below

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B) Newton's 2nd law states that the acceleration of a system is directly proportional to the net external force acting on that system, is in the same direction with it and also inversely proportional to the mass.

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a passenger elevator operates at an average of 8 m/s if the 60th floor is 219 m above the first floor how long does it take the
MAVERICK [17]

Answer:

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two balled fists pressing the abdomen

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