00:01
Hello students a question from mr.
00:02
Isometry.
00:04
Nacl and nabr are together in a mixture and they weigh 2 .01 gram.
00:11
If sodium ion is present as 0 .75 gram, what is the mass of nabr? let assume that mass of nacl is a gram and mass of nabr is b gram.
00:27
So according to the problem, a plus b should be equal to 2 .01 gram.
00:32
Now if mass of nacl is a gram, then moles of nacl will be mass of nacl divided by number of moles of nacl.
00:44
Then moles of chloride should also be equal to this value.
00:49
And if this is the moles of chloride and then the mass of chloride n will be equal to its number of moles multiplied by its atomic mass.
00:58
And this is equal to this in terms of a.
01:01
Similarly, moles of any br can be calculated and mass of br minus can be calculated...