Molar mass of H2C2O4=90.03g/mol
To detrimine the percent of carbon to divide the molar mass of h2c2o4 by the mass of carbon
% carbon=2*12/90.03*100
% of carbon=26.65%
Balance in acid solution: The reducing agent is The oxidation number of carbon in H2C2O4 is Cr2O72- + H2C204 - Cr3+ + CO2
What is the mass percent of carbon (12.01 g/mol) in oxalic acid, H2C2O4 (90.0349 g/mol)?
Calculate the molarity of
H2C2O4 and KMnO4. Find the mass of iron in sample and the percent
iron in sample.
Calculate the [H3O+]and pH of the following polyprotic acid solution: 0.300 M H2C2O4. Part D Calculate the pH of this solution.
Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.350 M H2C2O4.
Part A= Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.300 M H2C2O4. Part B= Calculate the pH of this solution.
1. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H3PO4. Calculate the pH of this solution. 2. Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.400 M H2C2O4.
Rate equation is rate =
k[MnO4-]x[H2C2O4]y
Understand what [MnO4-],
[H2C2O4], x, y and k are. How to
calculate the x,y, and k in this experiment?
2Mno4-+5H2C2O4+6H+2Mn2++10CO2+8H2O
Oxalic acid, H2C2O4 has acid dissociation constants of ?a1=5.90×10−2 and ?a2=6.40×10−5. Calculate the pH and molar concentrations of H2C2O4 , HC2O−4 , and C2O2−4 at equilibrium for each of the solutions. A 0.117 M solution of H2C2O4 A 0.117 M solution of Na2C2O4
A voltaic cell consists of a CO2(g)|H2C2O4(aq) electrode and a PbI2(s)|Pb(s) electrode. Calculate the value of the equilibrium constant for the cell. E ○ cell for PbI |Pb 2(s) (s) = -0.365 V E ○ cell for CO2(g)|H2C2O4(aq) = -0.49 V