The equation in the picture above is equation 14. And the other picture is the c

Question

The equation in the picture above is equation 14. And the other picture is the collected data. Ksp is supposed to be determined using AI.4. Please explain, thank you!!! Experiment 9-Data and Analysis Data (D) 1.2 Prepare potassium nitrate (KNO,) solution a. Mass of weighing paper b. Mass of potassium nitrate (KNO,) and weighing paper 11.3 Starting volume of potassium nitrate (KNO,) solution Determine KNO(s) formation temperature (7) as a function of solution volume (r) Determination number 10 1520 25 Total added volume (mL) Temperature (C) for initial KNOy(s) formation Analysis (A) I. Several quantities for each determination must be calculated irn determination must be calculated in preparation for constructing the van't Hoff plot. 1. T(k)-use temperature (C) for initial KNO) formation (DII) measured for each determination in eq. (17). I/T(K-)-reciprocal of the quantity calculated in AL.1. ot (mL)-Data-I1.3 plus total added volume for each determination. 4. [K]-[NO,1-Use DI.2b-DI.2a for the mass of KNO, (m) and Visol from Al.3 in eq. (16). Remember to convert Vsot from milliliters to liters 5. Kp-Use [K'1- [NO;] from Al-4 in eq. (14). 6. In K,-calculate natural logarithm of Kp determined in Analysis-5 Determination T(K) TKVt (mL) IK'-INO,1 Kp In K.p -3 2 334.15 149x10 34 602 3 216.55 300x 5.2a 312.15 3.1sxlo44 4.69 s 213.15 41410 494.2 6 308 15 325xlo 543.82 209

Explanation / Answer

KNO3 is a ionic solid and it will be completely dissociated in the solution. So, at equilibrium [KNO3]=[K+]=[NO3^-]

KNO3 <==> K^+ + NO3^-

Ksp = [K^+][NO3^-]

= 7.11*7.11 =50.55

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Determination Ksp

2 36.85

3 27.98

4. 21.99

5. 17.72

6. 14.59

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