00:01
If we're preparing various dilutions each time, the dilution being one -fifth the original, and we've got several test tubes, it appears we're taking one milliliter from the previous test tube and diluting it to a total of five milliliters.
00:18
So if we start with the stock solution of one molar and we carry out our first dilution, then we're going to have one -fifth of a molar in the first test tube, which would be 0 .2 molar.
00:39
Then if we do a 1 5th dilution again, then we'll get 0 .04 molar, and then again, 0 .008 molar.
01:03
And if we go to 1 5th of that, we're going to have 0 .016 molar, and then 0 .00032 molar.
01:25
So the first question, which i guess they've called a, what is the amount of diluent in tube 1? well, the diluent is what is being used for dilution, and if we carry over 1 milliliter, then we're going to have to add 4 milliliters, diluent in order to bring it up to 5 milliliters and get a 1 5th concentration...