PLEASE HELP If you are attempting to capture exactly 0.54 moles of Hydrogen gas at STP, how many moles are you trying to capture? ​

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.

Which best explains why an iceberg floats?

How many moles of gas are present if p=11 atm, v=12l, t=185k?