how would you make one gram potassium chloride with barium chloride and potassium carbonate
To make one gram of potassium chloride using barium chloride and potassium carbonate, you need to perform a reaction known as double displacement or metathesis reaction. Here's a step-by-step explanation:
Step 1: Determine the balanced chemical equation for the reaction.
The balanced chemical equation for the reaction between barium chloride (BaCl2) and potassium carbonate (K2CO3) is:
BaCl2 + K2CO3 -> BaCO3 + 2KCl
Step 2: Determine the molar masses of the compounds.
The molar mass of barium chloride (BaCl2) is approximately 208.23 g/mol.
The molar mass of potassium carbonate (K2CO3) is approximately 138.21 g/mol.
Step 3: Calculate the amount of barium chloride needed.
Since the molar ratio between barium chloride and potassium chloride is 1:1, you will need 1 gram of barium chloride.
Step 4: Determine the amount of potassium carbonate needed.
To find the amount of potassium carbonate required, we can use the stoichiometry of the reaction.
From the balanced equation, we know that 1 mole of barium chloride produces 1 mole of potassium chloride.
Therefore, we need to find the molar mass of potassium chloride to calculate the amount of potassium carbonate required.
The molar mass of potassium chloride (KCl) is approximately 74.55 g/mol.
Now, we can calculate the amount of potassium carbonate needed using the following conversion:
1 gram KCl * (1 mol KCl / 74.55 g KCl) * (2 mol K2CO3 / 2 mol KCl) * (138.21 g K2CO3 / 1 mol K2CO3) = approximate amount of potassium carbonate required in grams.
Step 5: Perform the reaction.
Weigh and mix the calculated amounts of barium chloride and potassium carbonate in a container. Carefully dissolve them in water to allow the reaction to take place.
Step 6: Collect and separate the desired product.
After the reaction is complete, filter the solution to remove the insoluble barium carbonate (BaCO3) formed. The remaining solution will contain potassium chloride (KCl).
Step 7: Dry and weigh the product.
Collect the potassium chloride product and dry it thoroughly. Weigh the final amount of potassium chloride obtained.
Remember to always exercise caution and follow proper safety protocols when handling chemicals.