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Use the following data to calculate the mass % ethanol in a 50.532 g sample.1956 M K2Cr2O7 added to solution B.05 mL of 0.05432 M Fe2+ needed to...
Use the following data to calculate the mass % ethanol in a 50.532 g sample.
0.1956 M K2Cr2O7 added to solution B.
31.05 mL of 0.05432 M Fe2+ needed to titrate an aliquot of solution B.
a) mmol Fe2+ added to titrate sample.
b) mmol Cr2O72- in excess in titrated sample.
c) mmol Cr2O72- in excess in solution B.
d) mmol Cr2O72- added to solution B.
e) mmol Cr2O72- reacted with C2H5OH in solution B.
f) mmol C2H5OH in solution B.
g) mmol C2H5OH in solution A.
h) mass % C2H5OH in original unknown beer sample.