Question

During a titration involving 1.852 g of khp powder, the amount of naoh in a buret started at a reading of 3.56 ml. What is the amount of NaOH in moles?

Answer 1

To calculate the number of moles of NaOH used during a titration, the concentration of NaOH solution and the final buret reading are necessary. The calculation cannot be completed with the initial volume alone. The formula involves multiplying the used volume of NaOH (in liters) by its concentration (in molarity).

Step-by-step explanation:

To determine the amount of NaOH in moles used during the titration of KHP (potassium hydrogen phthalate), additional information is needed such as the concentration of the NaOH solution and the final volume reading on the buret after the titration is complete. Without this information, it is not possible to calculate the number of moles of NaOH directly from the initial buret reading provided (3.56 mL).

Once the concentration of the NaOH solution (in molarity) and the total volume of NaOH used (final buret reading minus initial reading) are known, the number of moles of NaOH can be calculated using the formula:

# moles NaOH = Volume of NaOH (in liters) × Concentration of NaOH (in molarity)

For example, if we have a NaOH solution with a concentration of 0.100 M, and the final volume reading on the buret was 13.56 mL, resulting in a volume used of 10 mL or 0.01 L, then the number of moles of NaOH would be:

# moles NaOH = 0.01 L × 0.100 M = 0.001 moles of NaOH