The heat of vaporization of water is 2260 J/g. How much heat does it take to boil away 500 mL of water at 100C? (remember water 1g= 1mL that's how the mL was defined)

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 one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility