- #1
grumpyasian
- 7
- 0
Homework Statement
An alloy sample weighing 5.00g contains Cr. The Cr is chemically converted to a K2Cr2O7 solution. The Cr2O7^-2 ion in the solution is converted to Cr^+3 by reacting it with 4.73g of I2.
Cr2O7^-2 + I2 --->Cr^+3 +IO3 ( need to balance redox reaction)
Homework Equations
What is the % Cr in the alloy?