If 42 mL of Cr2O7-2(aq) solution is titrated to the

If 42 mL of Cr2O7-2(aq) solution is titrated to the endpoint with 172 mL of 0.15 M Cl-, what was the concentation of Cr2O7-2
1. 1 answer
2. asked by Adrianna
3. 514 views
Redox reactions(Cr2O7)2- + 2Al + 14H+ <—> 2Cr3+ + 2Al3++ 7H2O 1) how many ml of solution 1.50 M e (Cr2O7)2- are needed to act
1. 1 answer
2. asked by Elena
3. 512 views
(Cr2O7)2- + 2Al + 14H+ <—> 2Cr3+ + 2Al3++ 7H2O1) how many ml of solution 1.50 M e (Cr2O7)2- are needed to act without residue
1. 3 answers
2. asked by Elena
3. 330 views
Complete and balance these half-equations. Express as net ionic eqn.1.) Cr2O7(2−) → Cr(3+) (acidic solution) So far, I have:
1. 0 answers
2. asked by Daniel
3. 595 views
What is the oxidation half reaction for the following equation: Cr2O7^-2 +Fe+2 - - > Cr^+3 + Fe^+3Cr^+3 - - > Cr2O7^-2 Fe^+2 - -
1. 3 answers
2. asked by Kayla
3. 1,049 views
What is the oxidation half reaction for the following equation: Cr2O7^-2 +Fe+2 - - > Cr^+3 + Fe^+3Cr^+3 - - > Cr2O7^-2 Fe^+2 - -
1. 2 answers
2. asked by Samuel
3. 1,858 views
Use Le' Chatelier's Principle.a solution at equilibrium: BaCrO4(s)<> Ba^2+(aq)+ Cr)4^-(aq)recall: 2CrO4^2-(aq)+ 2H^+(aq)<>
1. 2 answers
2. asked by Sandra
3. 2,308 views
Use Le' Chatelier's Principle.this is a solution at equilibrium: 2CrO4^2-(aq)+ 2H^+(aq)< >Cr2O7^2-(aq) +H20 2CrO4^2- yellow
1. 6 answers
2. asked by lostttt
3. 3,565 views
A 5.0 M solution of HNO3 is titrated with 0.3 M NaOH. Identify the species that have the highest concenttrations in the solution
1. 4 answers
2. asked by Sara
3. 5,088 views
What is the reduction half-reaction for the following unbalanced redox equation?Cr2O7^2– + NH4^+ Cr2O3 + N2 A.Cr2O3-->
1. 11 answers
2. asked by cassie
3. 2,113 views