I\'m not sure why I\'m so lost on these calculations. Does anyone mind helping m
ID: 483500 • Letter: I
Question
I'm not sure why I'm so lost on these calculations. Does anyone mind helping me with these? Thank you so much!!! The Determination of an Equilibrium Constant Expression Required Skills To perform this experiment you will need to have mastered all of the skills from Experiment #1 and also be able to properly obtain solid samples. Weigh solid samples. Perform a vacuum filtration. Perform a gravity filtration. Perform a titration. You should thoroughly review this material in the basic skills document available on the Moodle site. Remember, that the instructor and TAs are constantly assessing your level of preparation. Students who are disorganized, confused, and uninformed will receive lower laboratory scores. Background This laboratory experiment is focused on determining the equilibrium constant expression for the solubility ofan ionic solid. We will consider the process of solid calcium iodate converting into aqueous calcium and iodate ions... 21O. (Rxn 1) When a system reaches chemical equilibrium the concentrations ofthe chemicalspecies become constant Mith respectio time. Furthermore, it has been found that specific ratios of the chemical concentrations raised to precise exponential powers are always the same (no matter what the starting concentrations were). The e of the correct ratio is called the librium tant (often denoted as K and the mathematical relationship linking the concentrations to the constant is called the equitbrium ion. You will empirically determine the equilibrium constant expression for Rxn 1 in this laboratory experiment.Explanation / Answer
Goal #1 To make 10 g of Ca(IO3)2
mass of Ca(NO3)2.4H2O required = (10/390) x 236.15
= 6.05 g
mass of KOI3 required = 2 x (10/390) x 214
= 10.97 g
Goal #2 To make 0.1 M of 100 ml Ca2+ solution
mass of Ca(NO3)2.4H2O required = 0.1 x 0.1 x 236.15
= 2.3615 g
The calcium solutions would be prepared by first weighing the required mass of solids, dissolving it in suitable volumetric flasks with deionized water and diluting it upto the mark in each case.