2. 24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass
of 74.61 amu, and 27.2% have a mass of 75.20 amu.
How many protons does this element have?
32
33
no way to know
34

idk what is it? is this a question that you know the answer or u dont

the correct answer would be b) volume versus temperature, because they are also directly proportional.

answer: option (a) is the correct answer.

explanation:

the measurement of hydrogen ions in a solution is known as ph.

if ph of a solution is less than 7 then the solution is acidic. if ph of a solution is greater than 7 then the solution is basic.

when the ph of a solution equals 7, then the solution is considered as neutral.

the ph of pure water is 7, therefore, it means that concentration of hydronium ions equals that of hydroxide ions.