The value of Ksp for PbI2 is 1.4 × 10–8. What mass (expressed in grams) of solid potassium iodide, KI, must be added to 200. mL of 0.00026-M Pb(NO3)2(aq) to cause PbI2 to precipitate? Assume no volume change when adding the solid KI.

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm