I have a lab finished and I have to find the dehydrated sample (show calculations) and the value of n (show calculations). I just need to know how I go about finding these answers using my data?

With no numbers and only a general description, there isn't much I can help with.

To find the dehydrated sample and the value of "n" using your lab data, you will typically follow these steps:

1. Begin by collecting the necessary data: You should have the initial mass of the hydrated sample and the final mass of the dehydrated sample.

2. Calculate the mass of water lost: Subtract the final mass of the dehydrated sample from the initial mass of the hydrated sample. The result will be the mass of water lost during dehydration.

3. Calculate the percentage of water lost: Divide the mass of water lost by the initial mass of the hydrated sample, then multiply the result by 100. This will give you the percentage of water lost during dehydration.

4. Calculate the moles of water lost: Convert the mass of water lost to moles by dividing it by the molar mass of water (18.02 g/mol).

5. Determine the molar ratio: Use the balanced chemical equation for the reaction to identify the molar ratio between the water lost and the compound being dehydrated. For example, if the equation is AB·nH2O → A + nH2O, the molar ratio would be 1:1.

6. Calculate the moles of the compound: Multiply the moles of water lost by the molar ratio in the balanced equation. This will give you the moles of the compound being dehydrated.

7. Calculate the value of "n": Use the moles of the compound calculated in the previous step to determine the value of "n" in the chemical formula. This value corresponds to the number of water molecules that were present in the hydrated compound.

By following these steps and performing the necessary calculations, you will be able to find the dehydrated sample mass and the value of "n" using your lab data.