base on the balanced chemical equation shown below, determine the molar its of a

Question

base on the balanced chemical equation shown below, determine the molar its of a solution containing Fe2+(aq), if 40.00 mL of the Fe2+(aq) solution is required to completely react with 30.00 mL of a 0.250 M potassium bromate, KBrO3(aq), solution. The chemical equation for the reaction is 6Fe2+(aq) +BrO3-(aq)+6H+(aq)=6Fe3+(aq)+Br-(aq)+3H2o(l) base on the balanced chemical equation shown below, determine the molar its of a solution containing Fe2+(aq), if 40.00 mL of the Fe2+(aq) solution is required to completely react with 30.00 mL of a 0.250 M potassium bromate, KBrO3(aq), solution. The chemical equation for the reaction is 6Fe2+(aq) +BrO3-(aq)+6H+(aq)=6Fe3+(aq)+Br-(aq)+3H2o(l) base on the balanced chemical equation shown below, determine the molar its of a solution containing Fe2+(aq), if 40.00 mL of the Fe2+(aq) solution is required to completely react with 30.00 mL of a 0.250 M potassium bromate, KBrO3(aq), solution. The chemical equation for the reaction is 6Fe2+(aq) +BrO3-(aq)+6H+(aq)=6Fe3+(aq)+Br-(aq)+3H2o(l)

Explanation / Answer

M = mol/V

V = 40 ml of Fe+2

thenmmol of BrO3- used = MV = 30*0.25 = 7.5 mmol of BrO3-

ratio is 6:1

so

7.5*6 = 45 mmol of Fe+2 expected

then

M = mmol/mL = 45/(40) = 1.125 of Fe+2

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