Answer to Question #54070 in General Chemistry for Thuy

Question #54070
1.What is the mass percent of salt in a mixture of 58.5 g NaCl added to 200 ml of water? Assume density of water is 1.00 g/ml. 2. What is the molarity of salt in a mixture of 58.5 g NaCl dissolved in water so that there is 200 ml of solution? Assume density of water is 1.00 g/ml. 3. A solution is 0.15 M in Na2SO4, what is the molar concentration of Na+ in that solution? 4. If we have 0.8 liters of a solution that is 0.15 M in Na2SO4, what is the molar concentration of sodium sulfate in the solution if we place it all in a one-liter volumetric flask and use water to fill the flask to the one-liter mark?
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