how to prepare 24 μL of 5% H3BO3
To prepare 24 μL of a 5% H3BO3 solution, you will need to follow these steps:
Step 1: Determine the desired volume.
In this case, the desired volume is 24 μL.
Step 2: Calculate the amount of H3BO3 needed.
A 5% H3BO3 solution means that the solution contains 5 grams of H3BO3 per 100 mL of solution.
To calculate the amount needed for 24 μL, we need to convert μL to mL:
24 μL = 24/1000 mL = 0.024 mL
Now, we can calculate the weight of H3BO3 needed using the concentration:
5 grams of H3BO3/100 mL of solution = x grams of H3BO3/0.024 mL
x = (0.024 mL * 5 grams of H3BO3) / 100 mL
x = 0.0012 grams of H3BO3
So, you will need 0.0012 grams of H3BO3 to prepare 24 μL of a 5% H3BO3 solution.
Please note that working with such small volumes may require precision measuring equipment, such as a microbalance or a pipette specifically designed for microliter measurements.