Explain the resulting solution acidified sufficiently

Reference no: EM13527965

A 50.00 mL sample of ethanol was mixed with 10.00mL of 0.200M K2Cr2O7 solution and the resulting solution acidified sufficiently. Assume a constant pH of 0 throughout the procedure. After the reactions was allowed to take place the resulting mixture was tritrated vs. standard Fe+2 solution (0.0300M); an end point of 24.62mL was found.

a. write the three half reactions involved in the above procedure.

b. Write the two complete (net ionic) reactions (step 1 and 2).

c. How many mole of dichromate were left over after the reaction in step 1?

d. Calculate the concentration of ethanol in the sample used.

e. How would you detect the end point of step 2?

Reference no: EM13527965

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