Monday, March 4, 2019

Cations and Anion Lab Essay

IntroductionIn this experiment we lead be mixing two ionic compounds potassium chromate and lead nitrate both are meltable in water. This will be demonstrating a double-replacement response/ answers betwixt cations and anions. If a reaction does occur it will form a precipitate due to one of the newly make compounds not organism soluble in water.Once the experiment was completed there was what appears to be a satisfying substance remaining in the test tube. This shows that a reaction occurred.Procedure1. Once in the ChemLab-Cations and anion reactions. You will motivation to induce a 100mL beaker and 50mL of potassium chromate. This will be done by clicking on the Chemicals section of the toolbar, and then acquireing 1M Potassium Chromate, heighten the volume to 50mL, then consider to add the Potassium Chromate to a new 100mL beaker.2. Next, you will need to remaining click on the beaker, then get Chemicals from the toolbar, select 1M Lead Nitrate, change the volume to 50mL (ensure that the window indicated that it will be placed in the vivacious beaker.3. Now you will need to filter the precipitate. Obtain an Erlenmeyer flask and a Buchner funnel. This will be done by selecting from the Equipment section on the toolbar and selecting Erlenmeyer Flask-250mL. Next, reform click on the flask and select Buchner Funnel. Right click on the beaker and select Pour/Decant. Move the beaker above the funnel and you will put one over a white area at the bottom of the flask.4. Lastly, you will need to record the weight of the precipitate. Rightclick on the flask and select Buchner Funnel. A message will appear asking if An amount of solid was found present in the filter, what action would you like to take?, select place solid into 50mL trial Tube. You will now see the outpouring Tube with the precipitate in the bottom, right click on the Test Tube and click on show weight, the weight of the precipitate will appear, record the weight.Observations and Resul tsThere is a small amount of precipitate in the bottom of the test tube that appears yellow in color with round dots in the solution.Weight of filtered precipitate 16.160gDue to a reaction occurring between the cations and the anions this has caused a reaction, therefore creating a solid that is not water soluble. countersignWhen mixing the two ionic compounds potassium chromate and lead nitrate and then filtering the solution this revealed a solid substance that remained. This substance is not soluble in water hence it was left behind after filtering. This shows that a reaction occurred between the cations and anions.ConclusionThis lab represented a double-replacement reaction of the ionic compounds potassium chromate and lead nitrate. Once these compounds were mixed and then filtered it revealed a solid substance that remained. This confirms that a reaction occurred between the cations and anions, and ultimately formed a new substance.

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