Assignment task: Calculate the quantities needed to prepare each liquid compound. Round your answers to two decimal places (hundredths) when necessary.
Q1. Calculate the amount of sodium iodide powder needed to prepare 30 mL of 4% sodium iodide solution, using water as the solvent.
Q2. Calculate the amount of potassium chloride powder needed to prepare 250 mL of 10% potassium chloride solution, using water as the solvent.
Q3. Calculate the amount of pure ethanol needed to prepare 200 mL of 60% ethanol solution, using water as the solvent.
Q4. Calculate the amount of sodium chloride powder needed to prepare '1 liter of 0.45% sodium chloride solution. using water as the solvent.
Q5. Calculate the amount of dextrose powder needed to prepare 600 mL of 5% dextrose solution, using water as the solvent.