Suppose you are given two flasks at the same temperature, one of volume 2 L and the other of volume 3 L. The 2-L flask contains 4.8 g of gas, and the gas pressure is X atm. The 3-L flask contains 0.36 g of gas, and the gas pressure is 0.1X. Do the two gases have the same molar mass? If not, which contains the gas of higher molar mass?

Explanation:

The given data is as follows.

          = 2 L,     = 3 L,        

        = X,           = 0.1 X,

        = 4.8 g,       = 0.36 g,

      = ?,               = ?

According to the ideal gas equation,

                            = 2

or,              

Thus, we can conclude that two gases does not have the same molar mass and flask 1 contains a gas of higher molar mass.

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.