Asked by Anonymous
if 50 grams of sodium hydroxide mixed with 25 grams of hydrochloric acid how many grams of salt can be formed?
Answers
Answered by
DrBob222
You have a limiting reagent (LR) problem here because amounts are given for BOTH reactants.
NaOH + HCl ==> NaCl + H2O
mols NaOH = grams/molar mass= ?
mols HCl ==> grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols NaOH to mols NaCl.
Do the same and convert mols HCl to mols NaCl.
It is likely the two values will not agree which means one of them is wrong; the correct value in LR problems is ALWAYS the smaller one and the reagent responsible for that is the LR.
using the smaller value convert to g NaCl. g NaCl = mols NaCl x molar mass NaCl.
NaOH + HCl ==> NaCl + H2O
mols NaOH = grams/molar mass= ?
mols HCl ==> grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols NaOH to mols NaCl.
Do the same and convert mols HCl to mols NaCl.
It is likely the two values will not agree which means one of them is wrong; the correct value in LR problems is ALWAYS the smaller one and the reagent responsible for that is the LR.
using the smaller value convert to g NaCl. g NaCl = mols NaCl x molar mass NaCl.
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