00:01
Hello students, in the question they have given us different ph values and asked to write the order from most to least acidic.
00:12
See what they have given, they have different, they have given different ph values, ph is equal to 3.
00:21
Ph is equal to 3 .5 and they have also given hydronium ion concentration.
00:29
It is concentration of h3o plus.
00:33
Called as hydronium ion, 10 to the power minus 2, ph is equal to 10, and concentration of hydronium ion is equal to 10 to the power minus 4.
00:48
They have given these 5 values.
00:52
We have to write an order in most to least acidic pattern.
01:07
See, we all know ph is what? it is negative log of hydrogen ion concentration or we can say negative log of hydrogen ion concentration.
01:22
Hydrogen ion and hydrogen ion concentration are considered as same.
01:26
Hydrogen ion is basically very reactive.
01:29
So when it in aqueous form, it is present in the form of of hydrogen ion.
01:41
Okay? see the direct ph values we have given ph is equals to 3, ph is equal to 3 .5 and ph is equal to 10 and two hydronium ion concentration values we have given so first we calculate the ph from this hydrogen ion concentration so ph will be equal to minus log of h3o plus concentration, it is given as 10 to the power minus 2.
02:21
So ph for this, the ph will comes out as 2.
02:26
So another ph value we have to find out...