00:01
This is the equation for the decomposition of sodium chloride.
00:05
We're told that, or sodium bicarbonate.
00:08
Sodium bicarbonate has a molar mass of 84 .006, this is given.
00:16
Sodium carbonate has a molar mass of 105 .99.
00:20
This is given.
00:26
We have a 90 % yield, and we have 75 % pure.
00:40
Sodium hydrogen carbonate, our baking soda.
00:46
We need 5 .94 grams.
00:52
Of sodium carbonate, minimum mass of the bicarb.
01:08
So this we're going to start with a stoichiometric calculation, starting with 5 .94 grams of na2 -c -o3.
01:22
We were given the molar mass as 105 .99 grams per mole.
01:36
My mole ratio of bicarb and hydrogen.
01:45
Of my sodium.
01:48
Can't say what i'm trying to say here.
01:53
My mole ratio of my hydrogen carbonate to my sodium carbonate are 80.
01:58
One two to one.
02:00
The molar mass was given.
02:05
And both of these, i don't have room, are the baking soda.
02:12
And this will equal.
02:13
Let me get the mass that i need of my sodium bicarp.
02:26
In 9 .416.
02:29
I'll run later...