How many grams of potassium nitrate (KNO3) are required to prepare 0.250L of a 0.700 M
solution (KNO3 = 101.102 g/mol)
O 12.5 g
O 31.2g
25.38
17.78

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

How many moles are in 123.0 grams of kclo4?