Question

The concentration of hydrogen ion in a sample soft drink is 3.8×10-³M .What is its PH ?

Full steps needed !!

Answer 1

Hi friend here is your answer

_______________________________________

pH is defined as - log10 of [H+]

$ph = - log_{10} |h + |$

So pH =
$- log_{10} \times 3.8 \times 10^{ - 3}$

$= - ( - 3)log10 - \: log \: 3.8$

As log 10 is 1 we get

$= 3 - 0.5798$

$ph \: = 2.42$
__________________________________________

Hope it helps you.........!!
#TheUsos
Down since
Day One Ish

Answer 2

Explanation:

As pH is the negative of log of hydrogen ion concentration.

Mathematically,        pH = $-log [H^{+}]$

It is given that concentration of hydrogen ion in the given sample is $3.8 \times 10^{-3} M$. Therefore, calculate the pH of this sample as follows.

                      pH = $-log [H^{+}]$

                            = $-log (3.8 \times 10^{-3})$      

                            = 2.42

Therefore, we can conclude that the pH of given sample of soft drink is 2.42.