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Calculate the moles of dichromate(VI) used in the reaction, given the concentration and volume of the solution.

Chemistry

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Here are the calculations for question 1)a) i-iv.

1)a) i) The amount in mole of dichromate (VI) used during the reaction

  1. Convert the volume of dichromate solution to dm3\text{dm}^3.

    Volume of Cr2O72−\text{Cr}_2\text{O}_7^{2-} solution = 27.30 cm3=27.30×10−3 dm3=0.02730 dm327.30 \text{ cm}^3 = 27.30 \times 10^{-3} \text{ dm}^3 = 0.02730 \text{ dm}^3.

  2. Calculate the moles of dichromate (VI) used.

    Concentration of Cr2O72−\text{Cr}_2\text{O}_7^{2-} solution = $0.020 \

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