The PH of a solution of Hcl is 2.what is the amount of acid present in a litre of the solution ​

Explanation:

By DEFINITION… pH , i.e. pouvoir hydrogène , “power of hydrogen” , pH=−log10[H3O+] .

And so if pH=2 , we take REVERSE logarithms..i.e. [H3O+]=10−2∙mol∙L−1 … [H3O+]=0.010∙mol∙L−1 …,

We know that hydrochloric acid, for which the protolysis is complete, undergoes the reaction..

HCl(aq)+H2O(l)→H3O++Cl−

The solution is thus stoichiometric in hydronium ion…

narendra modi is currently the pm of india

explanation:

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.