Asked by Chelsea
What is the sodium concentration when a solution is formed by mixing 60.0 ml of 0.150 M sodium carbonate with 75.0 ml of 0.225 M sodium bicarbonate?
Answers
Answered by
DrBob222
mols Na2CO3 = M x L = ?
mols Na^+ from Na2CO3 is twice M Na2CO3.
mols NaHCO3 = M x L = ?
mols Na^+ from NaHCO3 is 1x M NaHCO3.
Total mols Na^+ = mols Na^+ from Na2CO3 + mols Na^+ from NaHCO3.
M Na^+ = mols Na^+/L soln.
Note: L soln = 60 mL + 75 mL = total and convert to L.
mols Na^+ from Na2CO3 is twice M Na2CO3.
mols NaHCO3 = M x L = ?
mols Na^+ from NaHCO3 is 1x M NaHCO3.
Total mols Na^+ = mols Na^+ from Na2CO3 + mols Na^+ from NaHCO3.
M Na^+ = mols Na^+/L soln.
Note: L soln = 60 mL + 75 mL = total and convert to L.
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