QUESTION#1: TOPIC: Limiting reactants Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O). Suppose 35. g of sulfuric acid is mixed with 45.2 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 2 significant digits. ? g
QUESTION#1:
TOPIC: Limiting reactants
Aqueous sulfuric acid (H2SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and liquid water (H2O). Suppose 35. g of sulfuric acid is mixed with 45.2 g of sodium hydroxide. Calculate the maximum mass of water that could be produced by the
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QUESTION #2:
TOPIC: Solving for a reactant in solution
One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in the water is by titrating a sample of silver nitrate solution. Any chloride anions in the solution will combine with the silver cations to produce a bright white silver chloride precipitate. Suppose an EPA chemist tests a 250. mL sample of groundwater known to be contaminated with nickel(II) chloride, which would react with silver nitrate solution like this:
The chemist adds 34.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 8.9 mg of silver chloride. Calculate the concentration of nickel(II) chloride contaminant in the original groundwater sample. Round your answer to 2 significant digits.
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? mg/L
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