X 100 grams Moles of Solute
Mass of solute
Molarity =
mass%
Molar Mass
Liters of solution
Mass of solution
Moles
MV, = M V2
20. Calculate the molarity of a solution in which 31.89 g of HNO3 is dissolved in 17.4L of solution.
a. 0.054 M
b. 1.84 M
C. 0.023 M
d. 1.56 M

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.