00:01
So, in the overall reaction we can see that 1 mole of naocl requires 2 mole of na2s2o3 that is sodium thiosulfate.
00:10
Volume of na2s2o3 we can calculate so final reading in the burette is 38 .5 minus the initial reading is 1 .8.
00:25
So, volume we get here 36 .7 ml or in liters it will be 0 .0367 liters.
00:40
Now, we can calculate the molarity of which is given to us na2s2o3 is given to us the molarity 0 .15 molar.
00:50
So, we can calculate here number of moles of na2s2o3 by using the formula molarity into volume.
01:01
So, molarity is 0 .15 given in the question into volume we have just calculated 0 .0367 liters.
01:12
So, number of moles will get 0 .005505.
01:20
So, these are the moles we will get.
01:24
Now, number of moles of naocl we can calculate now from here since we know 1 mole naocl requires 2 mole na2s2o3...