How do I make a 6M NaOH solution? (25mL)
see below.
To make a 6M NaOH solution, you will need the following:
1. Sodium hydroxide (NaOH): Sodium hydroxide is a strong base commonly available as a solid form. Ensure you have the appropriate amount of NaOH required to make the desired volume of solution.
2. Water: Water is used as a solvent to dissolve the NaOH and make the solution.
3. Measuring cylinder or graduated cylinder: A measuring cylinder or graduated cylinder is needed to measure the volumes accurately.
To make a 6M NaOH solution with a volume of 25mL, follow these steps:
1. Calculate the amount of NaOH required: The molarity of the solution (6M) indicates that there are 6 moles of NaOH in one liter of solution. To calculate the amount of NaOH needed for 25mL, use the following formula:
Moles of NaOH = Molarity × Volume (in liters)
Moles of NaOH = 6M × 0.025L
Moles of NaOH = 0.15 moles
Convert moles to grams using the molar mass of NaOH (approximately 40g/mol):
Mass of NaOH = Moles of NaOH × Molar mass of NaOH
Mass of NaOH = 0.15 moles × 40g/mol
Mass of NaOH = 6 grams
Therefore, you will need approximately 6 grams of NaOH.
2. Prepare the solution: Once you have measured out the required quantity of NaOH (6 grams), follow these steps to prepare the solution:
a. Add the calculated amount of NaOH (6 grams) into a container.
b. Add a small amount of water (around 10-15 mL) to dissolve the NaOH. Stir gently until all the NaOH is dissolved.
c. Transfer the solution to a 25 mL volumetric flask.
d. Add water to the flask until the total volume reaches 25 mL while swirling gently. Ensure the solution is mixed thoroughly.
e. The resulting solution will have a concentration of approximately 6M NaOH, with a volume of 25 mL.
Remember to handle NaOH with caution, as it is a corrosive substance.