0.70 g of hydrogen chloride (HCl) is dissolved in water to make 5.0 L of solution. What is the pH of the resulting hydrochloric acid solution? Express the pH numerically to two decimal places.

( About ) 2.42 pH

Explanation:

First convert grams to mole of the hydrochloric acid,

HCl ( moles ) = 0.7g * ( 1 mole / 36.5g ),

0.7 / 36.5 = ( About ) 0.0192 moles

Now take the moles as a fraction over the given liters, to determine " M, " the apparent pH

M = 0.0192 mole / 5.0 L,

M = 0.00384M

Because HCl is a strong acid and will completely ionized, take a look at the steps below,

[ H+ ] = 0.00384M pH = -log[H+] = - log[0.00384],

- log[0.00384] = - ( - 2.41566... )

Solution = ( About ) 2.42 pH

i think a, hope it .

explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.