 And so today we're going to do a lab called freezing point depression. We're going to use the effect, the colligative property, the effect of freezing point depression to determine the molar mass, the empirical formula, and more like a formula of an unknown compound. So as you can see here, I had to set up the logger pro to measure the temperature, and this is our temperature probe. And the first step in this lab is to measure five grams approximately of loric acid, which is going to be our solvent. Now, we're going to add the chloric acid to the test tube. Okay, so now we've added the loric acid to the test tube, but before I proceed, because some of the loric acid was left in our wayboat. This is the mass of the amount of loric acid that did not get into the test tube. Okay, so now we're going to place the loric acid in the water bath, which is at 61 degrees, and we're going to melt the loric acid. And we're going to add the temperature probe, which we can use as a stirrer, but being careful however that the core does not touch the hot plate. Now the loric acid is fully melted. We're going to place it back onto the stand, and we're going to begin collecting data with logger pro. And now we have come to the end of our run. We have collected all the data possible. I will save this logger pro file and make the data available to you so that you can derive the freezing point of loric acid from it. Okay, so now we're going to add 0.75 grams of the unknown solute. And that's pretty close to 0.75. Okay, so now we're going to carefully remove the probe, temperature probe, and we'll set it up to where we don't lose any of the loric acid very gently. And we will take this test tube, add the unknown solute to it. Okay, we have added the unknown. I will put this here, back here, and next I'm going to weigh the small way board again so that I can find out how much unknown I actually have added to the test tube. Okay, so now I'm going to put the probe back in the test tube. And I'm going to put the test tube in the hot water. And the temperature of this water bath is 51 degrees Celsius. And I'm going to proceed to melt the mixture. And now it's fully melted. We're taking it out of the bath and we're going to place it onto the stand and we're going to start recording. And so we have collected all the data that we need to collect. I will provide this graph to you. And your job now is to turn in a lab report using the lab template, lab report template that is being provided to you.