Assignment task: Explain and show the calculation.
1. I diluted 1L of 2M solution so that the resulting molarity was 0.5M. What was the final volume?
2. I diluted a solution of 10mL to a final volume of 1L. The final concentration was 0.05M. What was the original concentration?
3. A sterile glucose (dextrose) solution of a concentration of 5% may be used in intravenous drips. How many grams of glucose do you need to make 100mL such a solution?
4. A sterile glucose (dextrose) solution of a concentration of 5% may be used in intravenous drips. How many grams of glucose do you need to make 0.750L such a solution?
5. A sterile sodium chloride solution of a concentration of 0.9% are often used in intravenous drips. How many grams of sodium chloride do you need to make 100mL such a solution?
6. What is the molarity of a 0.9% NaCl solution?
7. Describe, how you would make 500mL of a 5% glucose solution. Use sterile water as you solvent and glucose (white powder) is your solute?