1- Sodium sulfate is a compound used in many soap or detergent products. Calculate the number of moles of solute needed to make 85.0 mL of 2.22 mol/L sodium sulfate solution.
2- Calcium nitrate is sometimes used in regenerable cold packs. Calculate the mass of solute needed to make 75.0 mL of 2.35 mol/L calcium nitrate solution.
write an dissociation equation and calculate the concentrations of all ions present when 100.0 g of Na2OOCCOO is dissolved to make 5.0 L of solution.
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