Define a white precipitate formed

Assignment Help Chemistry

Reference no: EM13226478

You first treated your unknown solution with 1 M K2C2O4 and 1 M CH3COOH and a yellow precipitate formed. The liquid remaining atop this precipitate was removed after centrifugation, and to it was added 1M H2SO4. No new precipitate formed. Next, a solution of 0.25 M (NH4)2C2O4 was added to the unknown solution which had been treated in the fashion described. A white precipitate formed. This mixture was centrifuged and separated, and the clear solution was then treated with 1 M Na2Co3. No Preceipitate formed. Which metal ions were present in your unknown? Which metal ions were absent?

Reference no: EM13226478

Questions Cloud

Alkaline earth metal hydroxide to be used as a strong base : alkaline earth metal hydroxide to be used as a strong base or good source of hydroxide ion in aqueous solution for practical operation, which one would you use? Please explain why.

What are some disadvantages to paying college athletes : Should college athletes be paid? What are some advantages to paying college athletes? What are some disadvantages to paying college athletes? Which ones would you pay? Why?

Explain the alkaline earth metal hydroxides : Which of the alkaline earth metal hydroxides, M(OH)2, would you expect to be most soluble in water? Least soluable?

What conditions have allowed some firms to be born global : What conditions have allowed some firms to be born global?

Define a white precipitate formed : A white precipitate formed. This mixture was centrifuged and separated, and the clear solution was then treated with 1 M Na2Co3. No Preceipitate formed. Which metal ions were present in your unknown? Which metal ions were absent

The actual molar concentration of the standard hcl solution : Jerry forgot to record the actual molar concentration of the standard HCL solution ( which was actually 0.044M), However to complete the calculations quickly the 0.05 M concentration was used. Will the reported molar solubility of the Ca(OH)2 be t..

How many clerks should the hotel employ for check-in system : How many clerks should the hotel employ for the check-in system to be cost effective?

Explain the ethylenediaminetetraacetate ion : The ethylenediaminetetraacetate ion, H2Y 2-, forms a strong complex with the calcium ion. How does the addition of the H2Y 2- affect the molar solubility of Ca(OH)2? Explain.

Will the current system meet the restaurant service goal : The local Quick Burger fast food restaurant has a drivethrough window. Customers in cars arrive at the window at the rate of 10 per hour (Poisson distributed). It requires an average of four minutes (exponentially distributed) to take and fill an ..

User Account

All Pages