Mass of weighed filter paper ?

Mass of weighed filter paper plus recrystallized vanillin?

Mass of recrystalized vanillin

Mass impure vanillin

Percent recovery

Suggest how you could have improved your techniques to increase your percent recovery.

So what is your question here? Fill out the data. I will be happy to critique.

I don't know the masses

To determine the mass of the weighed filter paper:

1. Start by obtaining a clean and dry filter paper.
2. Use a balance or scale to weigh the filter paper.
3. Record the mass of the filter paper.

To determine the mass of the weighed filter paper plus recrystallized vanillin:
1. Take the obtained filter paper and carefully add the recrystallized vanillin onto it.
2. Make sure the filter paper and vanillin are completely dry and free from any impurities.
3. Place the filter paper with the recrystallized vanillin on the balance or scale.
4. Record the mass of the filter paper plus recrystallized vanillin.

To determine the mass of recrystallized vanillin:
1. Subtract the mass of the weighed filter paper from the mass of the weighed filter paper plus recrystallized vanillin.
2. The resulting value will give you the mass of the recrystallized vanillin.

To determine the mass of impure vanillin:
1. If the mass of the recrystallized vanillin is given, subtract it from the initial mass of the impure vanillin.
2. The resulting value will give you the mass of the impure vanillin.

To calculate the percent recovery:
1. Divide the mass of the recrystallized vanillin by the mass of the impure vanillin.
2. Multiply the result by 100 to get the percentage.
3. This will give you the percent recovery of the vanillin.

To improve techniques and increase percent recovery:
1. Ensure proper filtration techniques are followed to remove impurities and obtain a purer product.
2. Optimize the recrystallization process, such as using the appropriate solvent and temperature, to maximize the yield.
3. Implement proper drying techniques to remove any remaining moisture in the recrystallized product.
4. Avoid unnecessary handling that could introduce impurities or cause loss of the product.
5. Use precise measurement techniques to minimize errors in mass determination.