00:01
How many liters of the calcium hydroxide are required to neutralize the hcl? so this is question one.
00:11
We can write down the reaction equation.
00:13
Cassium hydroxide react with two mores a hcl to produce calcium chloride and two mores water.
00:26
So it tells you that the hcl is 44 .7 millimeters.
00:34
Liter and it's 0 .03 mores of the hcl.
00:41
So in such case we realize that the mores of the hcl would be equal to concentration times the volume so which will be 0 .03 more times 44 .7 over 1 ,000 which is about 1 .34 .1, which is about 1 .3 .1 times 10 to minus 3 more.
01:23
And looking at here, you find 2 more hcl corresponds to 1 more calcium hydroxide.
01:30
So that means the mores of calcium hydroxide equals to 1 half of the mores of hcl, which is 6 .705 times 10 to minus 4 more.
01:51
And then we can calculate the volume of the calcium hydroxide, that is needed simply equals to the mores of the calcium hydroxide over the concentration of the calcium hydroxide.
02:05
That's equal to 6 .705 times 10 to minus 4 over this 0 .02.
02:21
And that's actually equal to about 0 .035 liter.
02:31
So it's actually about 33 .5 liter.
02:32
So it's actually about 33 .5.
02:36
Militer...