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You standardize a solution of KMnO4 by titration with a solution of oxalic acid. You weight out 1.378g H2C2O4•2H2O and dissolve it with deionized water in a 25.00 mL volumetric flask.
1. Explain what is the molarity of this oxalic acid solution?
2. Explain what is the balanced overall net-ionic equation for the reaction between oxalic acid and the permanganate ion, MnO4-?
3. Explain what is the molarity of the KMnO4 solution if it requires 15.42 mL of KMnO4 solution to reach the endpoint in a titration with 10.00 mL of the oxalic acid solution?
Limonene (mw 136) is a pleasant smelling liquid found in lemon and orange peels. the bp of limonene is 175, but it co-distills with water at 97.5. if the vapor pressure of water at 97.5 is 690 mm hg, what percentage of the steam-distillate is limo..
the vapor leaving the top of a distillation column goes to a condenser in which either total or partial condensation takes place.
Calculate q, w, ?E, and ?H for the process in which 80.0 g of nitrous oxide gas (N2O) is cooled from 162°C to 53°C at constant pressure of 5.00 atm. (See Table 9.1.) N2O Cv J/K mol = 30.38 Cp J/K mol = 38.70
48.61 g of magnesium was dissolved in diluted sulfuric acid and 490 g of MgSO4 . 7H2O was isolated from the solution. How many percent of impurities (if any) did the metal contain?
a weather ballon filled with helium has a volume of 1.0*10^-4L at 1.00 atm and 30.0C. it ascends to an altitude at which the pressure is only 0.60 atm and the temperature is -20.0C. what is the volume of the ballon at the higher altituda.
The oxygen atom with its 2s orbital forms a s bond with one of the three sp2 hybrid orbitals of the carbon atom; the two hydrogen atoms with their 1s orbitals each form a s bond with one of the three sp2 hybrid orbitals of the carbon atom.
When 2.848 grams of sulfur is dissolved in 50.0 ml of CS2 (density 1.263 g/ml), the solution boils at 46.54 C. what is the formula for sulfur
Suppose you have 0.3562g of Na2C2O4 and is dissolved in 250 mL volumetric flask. If 10 mL of this solution requires 48.36 mL of KMnO4 solution for titration, what is the molarity of the permanganate solution.
What is the pH of a solution obtained by adding 5.00 g of HI to 295 mL of a 0.786 M solution of nitric acid?
Suppose that a fully charged lead-acid battery contains 1.50 L of 5.00 M H_2SO_4. What will be the concentration of H_2SO_4 in the battery after 2.40 A of current is drawn from the battery for 8.00 hours?
How many milliliters of 4.00M H2SO4 are required to react with 1.60g of CuO according to the equation
EDTA solution to reach the end point in a titration. What mass (in milligrams) of CaCO3 (FW = 100.09 g/mol) will react with 1.85 mL of the EDTA solution?
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