2.Objective- We are trying to figure out the formula of a unknown hydrated salt. In order to do this we must know the formula to calculate moles which is moles=Mass(g)/Molecular Weight.
3.Introduction- We must know about hydrated salts which are salts that contain water. We are trying to figure out the molar mass of the hydrated salt given to us. In order to do this we must heat up a hydrated salt so that it reverses the reaction and removes the water.We then are able to get the mass of the anhydrous salt and water. Then you place both results into the formula x=Moles of water/moles of anhydrous salt.
4.List of materials/equipment and safety precautions
-Unknown hydrated salt
-Evaporating dish
-Water
-Small beaker
-Heating plate
-Scale
-Tongs
Safety precautions
- For this experiment you had to make sure you paid extra attention when using the heating plate. We had to heat the unknown hydrated salt for about 5 minutes. When doing this it was important that we had a timer so that we don't exactly overheat it. Overheating it can cause you're beaker to crack and possibly spilling hydrated salt on you. Also when handling the beaker when its done heating make sure you use the tongs because you can accidentally burn yourself and …show more content…
The weight of the hydrated salt and the small beaker must be figured out.Also the weight of the beaker with the hydrated salt in it must be figured out. Next step is to heat the hydrated salt so that it becomes a anhydrous salt. While doing this make sure you heat the hydrated salt until the color changes.Now you must weigh the mass of the anhydrous salt. The last part of this experiment just requires all the data of the previous steps and put them in certain formulas shown in the book and by the