1. (a) Balance the following reaction in acidic conditions: (do the work below and put a box around the final equation) Cr,O+C,O→ Cr3+ + CO2 (b) Sodium oxalate (Na₂C₂O4, 0.4800 g) was dissolved in acid and titrated with a 0.220 M K₂Cr₂O7 solution. Determine the volume (in mL) of the K₂Cr₂O, solution required to get to the end point. (MM of Na₂C₂O4= 134.00 g/mol) Hint: don't forget stoichiometry! 112-11

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b.
1. (a) Balance the following reaction in acidic conditions: (do the work below and put a box around
the final equation)
Cr³+ + CO2
Cr₂O₂+C₂04²-
(b) Sodium oxalate (Na₂C₂O4, 0.4800 g) was dissolved in acid and titrated with a 0.220 M K₂Cr₂O7
solution. Determine the volume (in mL) of the K₂Cr₂O7 solution required to get to the end point. (MM
of Na₂C₂O4= 134.00 g/mol) Hint: don't forget stoichiometry!
+12=14
8
+6
- 2
Cr₂0₂2² + (₂04² → Cr³+ + CO₂
2-
1+6+3 g [R]
Transcribed Image Text:b. 1. (a) Balance the following reaction in acidic conditions: (do the work below and put a box around the final equation) Cr³+ + CO2 Cr₂O₂+C₂04²- (b) Sodium oxalate (Na₂C₂O4, 0.4800 g) was dissolved in acid and titrated with a 0.220 M K₂Cr₂O7 solution. Determine the volume (in mL) of the K₂Cr₂O7 solution required to get to the end point. (MM of Na₂C₂O4= 134.00 g/mol) Hint: don't forget stoichiometry! +12=14 8 +6 - 2 Cr₂0₂2² + (₂04² → Cr³+ + CO₂ 2- 1+6+3 g [R]
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