stoichiometry review: you measure 4.0 mL of 2.2 mol/L HCl, and you mix this with 30.5...
stoichiometry review: you measure 4.0 mL of 2.2 mol/L HCl, and you mix this with 30.5 mL of 3.25 mol.L NaOH. These undergo a neutralization reaction. which reactant is the limiting reactant? What is the theoretical yield of your product? show work for full credit
Homework Answers
balanced reaction is needed to find theoretical yield
NaOH + HCl --> naCl + H2O
given
volume of HCl = 4 ml
molarity of Hcl= 2.2 mols/l
mols of HCl present = volume *molarity = 4ml* 2.2 M
= =8.8 milli mols
volume of naOH = 30.5 ml
molarity of NaOH = 3.25 M
mols of NaOH present = 30.5 ml*3.25 = 99.125 milli mols
from balanced equation, mol ratio HCl:NaOH= 1:1
Since mols of HCl is fewer than mols of NaOH ,
Limiting reactant : HCl
*************************
Mols of NaCl produced depends on mols of limiting
reactant.
mol ratio HCl:Nacl = 1:1
That means
mols of NaCl formed= mols of HCl present =8.8 milli mols
mas of NaCl formed = mols of NaCl*molar mass of naCl
=8.8x10^-3 mols* 58.44 g/mol
= 0.5143 Grams
Thus
Theoretical yield of NaCl = 0.5143 g
************
Thank you
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