A---Which of the following solutions of strong electrolytes contains the largest total number of ions? Show your calculations and explain your reasoning.
100.0 mL of 0.100 M sodium hydroxide
50.00 mL of 0.200 M barium chloride
75.0 mL of 0.150 M sodium phosphate
B--35.0 mL of lead(II) nitrate solution reacts with excess sodium iodide solution to yield 0.628 g of precipitate.
--Write a balanced equation for this reaction, and identify the precipitate. Indicate states of matter with parentheses and (aq) or (s).
--How many moles of precipitate formed?
--How many moles of lead nitrate were in the original solution?
--What is the concentration of the lead nitrate solution in grams per mL?
C---A gas mixture, with a total pressure of 300.0 torr, consists of equal masses of Ne (atomic weight 20.18) and Ar (atomic weight 39.95). What is the partial pressure of Ar, in torr?
A---Which of the following solutions of strong electrolytes contains the largest total number of ions? Show your calculations and explain your reasoning.
100.0 mL of 0.100 M sodium hydroxide
50.00 mL of 0.200 M barium chloride
75.0 mL of 0.150 M sodium phosphate
B--35.0 mL of lead(II) nitrate solution reacts with excess sodium iodide solution to yield 0.628 g of precipitate.
--Write a balanced equation for this reaction, and identify the precipitate. Indicate states of matter with parentheses and (aq) or (s).
--How many moles of precipitate formed?
--How many moles of lead nitrate were in the original solution?
--What is the concentration of the lead nitrate solution in grams per mL?
C---A gas mixture, with a total pressure of 300.0 torr, consists of equal masses of Ne (atomic weight 20.18) and Ar (atomic weight 39.95). What is the partial pressure of Ar, in torr?
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