NaCl + H2O + CO2 + NH3 ______> NaHCO3 + NH4Cl
1) You dissolve an excess of NaCl in a solution containing 50.0 mL of 4.77 M ammonia. You bubble in an excess of CO2.
Calulate the theoretical yield of sodium bicarbonate.
I have no idea how to do this, can I know the step by step procedure?
The amount of NaHCO3 depends only upon the starting amount of NH3.
1. You have the equation. Make sure it is balanced. If not, balance it before going further.
2. Convert NH3 to mols. mol = M x L = ?
3. Using the coefficients in the balanced equation, convert mols MJ3 to mols NaHCO3.
4. Convert mols NaHCO3 in step 3 to grams. g = mols x molar mass = ? This is the theoretical yield.
I think the answer is about 20 g but you should check me out on that.
Sure! To calculate the theoretical yield of sodium bicarbonate (NaHCO3) in the given reaction, you need to follow these steps:
Step 1: Determine the limiting reagent.
First, you have to determine which reactant will be fully consumed and, therefore, limit the amount of product that can be formed. In this case, we have NaCl, CO2, and NH3.
Given:
- Excess NaCl: This means there is more than enough NaCl to react with other reactants.
- 50.0 mL of 4.77 M ammonia (NH3): You need to convert this to moles of NH3 using the molarity and volume.
- Excess CO2: This means there is more than enough CO2 to react with other reactants.
Step 2: Convert the given information to moles.
- Use the molarity (mol/L) and volume (L) to calculate the number of moles of NH3: Moles of NH3 = Molarity of NH3 x Volume of NH3. Remember to convert mL to L.
Step 3: Determine the stoichiometry of the reaction.
Looking at the balanced equation: NaCl + H2O + CO2 + NH3 → NaHCO3 + NH4Cl
- From the balanced equation, you can see that 1 mole of NaHCO3 is formed for every mole of NH3 consumed.
Step 4: Calculate the moles of NaHCO3.
Since the stoichiometry tells us that 1 mole of NH3 forms 1 mole of NaHCO3, the number of moles of NH3 calculated in Step 2 will be the same as the number of moles of NaHCO3 formed.
Step 5: Convert moles of NaHCO3 to grams.
- Multiply the moles of NaHCO3 calculated in Step 4 by the molar mass of NaHCO3 to obtain the mass of NaHCO3 (in grams).
Step 6: Calculate the theoretical yield.
The theoretical yield is the maximum amount of product that can be formed based on the limiting reagent. In this case, since NH3 is the limiting reagent, the number of moles of NaHCO3 obtained in Step 4 is also the theoretical yield.
Make sure to use accurate molar masses and significant figures throughout these calculations.
Following these steps will allow you to calculate the theoretical yield of sodium bicarbonate.