1. You will need 600mL of a 0.5M NaOH solution. 3M NaOH is provided. Determine how much of the 3M NaOH you will need and write a procedure in your notebook for making the solution.
C1V1=C2V2
(600ml)(0.5M)=(3M)(x)
x= 100 ml
To determine how much of the 3M NaOH solution you will need, we can use the formula:
C1V1 = C2V2
Where:
C1 = Concentration of the initial solution (3M NaOH)
V1 = Volume of the initial solution to be used (unknown)
C2 = Concentration of the final solution (0.5M NaOH)
V2 = Volume of the final solution to be prepared (600 mL)
Now we can substitute the given values into the formula and solve for V1:
(3M)(V1) = (0.5M)(600 mL)
Dividing both sides by 3M:
V1 = (0.5M)(600 mL) / 3M
V1 = 100 mL
Therefore, you will need 100 mL of the 3M NaOH solution to make 600 mL of a 0.5M NaOH solution.
Procedure for making the solution:
1. Take a clean container (such as a beaker or flask) with a volume capacity larger than 600 mL.
2. Measure 100 mL of the 3M NaOH solution using a measuring cylinder or pipette.
3. Pour the measured 100 mL of the 3M NaOH solution into the container.
4. Carefully add distilled water to the container to reach a total volume of 600 mL. You can use a graduated cylinder or a volumetric flask to measure the water.
5. Stir the mixture gently to ensure proper mixing of the NaOH and water.
6. Check the final volume and adjust if necessary to reach the desired 600 mL.
7. Record the details of the solution preparation in your notebook, including the concentrations used, volumes measured, and any observations made during the process.
Note: When working with concentrated solutions like NaOH, take appropriate safety precautions, such as wearing gloves and eye protection, and working in a well-ventilated area.