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S + HNO3 --------> NO + H2
O + S
150 g of hydrogen sulfide are dissolved in 3500 mL of water.
a. What is the molarity of the hydrogen sulfide solution?
b. How many grams of sulfur can be produced from 50 mL of
this solution?
c. 22.4 L of nitrogen monoxide gas are produced at STP. What
volume of the solution was used?

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