Answers in picture above.

Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Find the mass, in grams, of 5.00*10^23 molecules of f2