Ksp (Q) values of lead(II) iodide Trial 1: 1.0 x 10-7             Trial 2: 7.5 x 10-8              Trial 3: 5.0 x 10-8  Trial 4: 2.6 x 10-8           Trial 5: 1.0 x 10-8              Trial 6: 7.5 x 10-9 Trial 7: 5.1 x 10-9             Trial 8: 2.5 x 10-9              Trial 9: 1.0 x 10-9 What is the Ksp range for lead (II) iodide?   ____________ > Ksp > ___________ and what is the actual literature Value lead (II) for iodide for lead iodide?

Best-fit line equation?

How many grams of Ca3(P04)2 will dissolve in a) 2.0 L of pure water? b) 500 mL of 1.0M Ca(NO3)2? Ksp for Ca3(PO4)2 = 2.0 x 10-29

If the equilibrium concentration of Ag1+ is 1.28 × 10-4 M, would the following set up for the Ksp value for Ag3PO be correct? Ksp - [Ag1+13(PO 3] = [1.28 × 10-413[(1.28 × 104 / 3)] is it true or false?

Equilibrium Solutions Volume (ml) Trial # 2.00 x 10-3 M Fe(NO3)3 (ml) in 5.00 M HNO3 2.00 x 10-3 M HSCN(ml) in 5.00 M HNO3 0.5000M HNO3(ml)   Absorbance [H+] 1 5.00 ml 1.00 ml 4.00 ml 0.085 0.500 2 5.00 ml 2.00 ml 3.00 ml 0.195 0.500 3 5.00 ml 3.00 ml 2.00 ml 0.345 0.500 4 5.00 ml 4.00 ml 1.00 ml 0.432 0.500 5 5.00 ml 5.00 ml 0.00 ml 0.506 0.500  What is the [Fe3+]initial (moles /L x 10 -4) for trial 1? What is the [HSCN]initial (moles /L x 10 -4) for trial 1?

ASAP

Ca3(PO4) ksp =2.07x10^-33 PbCl2 ksp= 1.70x10^-5 CaCl2 ksp= 1.63x10^3

25.0 cm3 of sodium hydroxide solution is tritrated against 0.2 mol dm–3 hydrochloric acid until the indicator just changes colour. 27.5 cm3 of the acid are required to reach the end point.Phenolphthalein is used as an indicator in the above experiment. What will be its colour change at the end point?   From pink to yellow From pink to colourless From yellow to colourless From yellow to pink

Incorrect is shown in red. Not sure how to calculate the equilibrium constant Kc

A standard solution contains 100 ppm of Fe, which was found to have an absorbance of 0.151 au at 508 nm after the addition of 1,10-phenanthroline, pH 4 buffer, and hydroxylamine. Then, a water sample treated similarly exhibited an absorbance of 0.109 au. Which of the following statements is true?   The Fe concentration of the water sample is higher than 100 ppm.   It is impossible to estimate the Fe content of the water sample from information presented.   The Fe concentration of the water sample is lower than 100 ppm.   The Fe concentration of the water sample is equal to 100 ppm.