question archive a) From the known amount KlO3 in the titration beaker below, use the following stoichiometric relationships to find the true concentration of Na2S2O3: mass of KlO3= 0
a) From the known amount KlO3 in the titration beaker below, use the following stoichiometric relationships to find the true concentration of Na2S2O3: mass of KlO3= 0
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a) From the known amount KlO3 in the titration beaker below, use the following stoichiometric relationships to find the true concentration of Na2S2O3:
mass of KlO3= 0.532g
Fill beaker to 250.00 ml of the concentration
initial volume: 20.00ml
final volume: 36.80ml
change in volume: 16.80 ml
KlO3 + 5KI + 3H2SO4 > 3I2 + 3H2O + 3K2SO4 (KlO3 is the limiting reactant)
I2 + 2Na2S2O3 > 2NaI + Na2S4O6
b) Determine the concentration of the Bleach solution after finding the oxidation state of each element below in the redo reaction:
Mass of NaClO (from stoichiometry)/ Mass of Solution (Bleach) x 100%
ClO- + I- > Cl- + I2
Balance the reaction in basic conditions by the half reaction method.
mass of bleach solution: 0.510g
initial volume: 20.00 ml
final volume: 31.40 ml
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