• how can you have a solution of a weak electrolyte that is high in concentration?

• An automobile gasoline tank holds 47 of gasoline. When the gasoline burns, 165 of oxygen are consumed and carbon dioxide and water are produced.

• how much heat would be needed to warm 7.40 g of water by 51 C?

• 4 Na(s) + O2(g ) 2Na2O(s) How many L of O2 gas at STP, are needed to react with 15.0 g of Na?

• If it takes 521 J of energy to warm 7.40 g of water by 15 C, how much heat would be needed to warm 7.40 g of water by 51 C?

• These can be combined to yield CO32-(aq) + 2H2O(l) H2CO3(aq) + 2OH-(aq); K3 What is the value of K3?

• how many moles are in 4.5lL of a 2.0M CaCl2 solution

• Name the following ternary acids a) HBrO3 b) HBrO c) HIO4

• when 35.6 L of ammonia and 40.5 L of oxygen gas at STP burn, nitrogen monoxide and water is produced. After the products return to STP how many grams of nitrogen monoxide is present

• Calculate the pH of .723 grams of HClO4 in .500 L of solution

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