00:01
In the given question, we have to find ph of the buffer and ph of buffer is given by the standard henderson equation.
00:11
Henderson equation formula is ph of buffer is equal to the pka value plus log to the base in which the standardized base will taken as the a minus divided by the acid which is the ha.
00:25
In the question, we have to find the first balanced chemical reaction and our balanced chemical reaction is h2po4 will be given.
00:35
It will be in both direction as both add will be given the solution reactant also and product also hppo4 twice plus the h plus i.
00:49
This will be the standard balanced equation and pka value is given in the question.
00:56
This will be the given in question that 2 .16 volume is given as the 1 liter and kh2po4 is given as the 17 grams and na2hpo4 is given as the 30 grams.
01:15
So if we have to find the moles, moles will be equal to the given weight by the molecular weight.
01:21
Therefore, moles is 17 divided by its molecular weight 136 .09.
01:28
Therefore, moles of kh2po4 will be equal to the 0 .125 moles...