Asked by Jo
Reaction: Na2CO3 + 2 HCl -> 2 NaCl + CO2 + H2o
How many grams of NaCl can be produced from the reaction of 1.35g of Na2CO3 with 125mL of 0.265 M HCl?
How many grams of NaCl can be produced from the reaction of 1.35g of Na2CO3 with 125mL of 0.265 M HCl?
Answers
Answered by
DrBob222
Another limiting reagent problem. How do I know that? Because amounts are given for BOTH reactrants.
mols Na2COP3 = grams/molar mass = ?
mols HCl = M x L = ?
Using the coefficients in the balanced equation, convert mols Na2CO3 t mols Nacl.
Do the same for mols HCl to mols NaCl.
It is likely that the two values will not be the same which means one of them is wrong; the correct value in limiting reagent problems is ALWAYS the smaller one and the reagent producing that value is the limiting reagent.
Now convert mols NaCl to g. grams = mols x molar mass. This is the theoretical yield.
mols Na2COP3 = grams/molar mass = ?
mols HCl = M x L = ?
Using the coefficients in the balanced equation, convert mols Na2CO3 t mols Nacl.
Do the same for mols HCl to mols NaCl.
It is likely that the two values will not be the same which means one of them is wrong; the correct value in limiting reagent problems is ALWAYS the smaller one and the reagent producing that value is the limiting reagent.
Now convert mols NaCl to g. grams = mols x molar mass. This is the theoretical yield.
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