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Oxalic acid, H2C2O4 has acid dissociation constants Ka1 = 5.9 x 102 and Ka2 = 6.4 x 105. What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2SO3
Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 10.13 mL of 0.08840 M potassium permanganate (KMnO4) to reach the purple endpoint. A blank required 0.18 mL. Determine the percent WO3 in ..
Find the molcular heat capacity in units. Does the law hold up? Can you distinguish a metallic element from a nonmetal this way. Metalloids
Calculate the final Celsius temperature of hydrogen chloride gas if 0.500 L at 35°C and 0.950 atm is heated
A carbonated beverage is made by saturating water with carbon dioxide at 0 C and a pressure of 3.0 atm. The bottle is then opened at room temperature (25 C), and comes to equilibrium with air in the room containing carbon dioxide CO2(PCO2=3.4x10?4..
The ratio of the number of atoms of the isotopes 69Ga and 71Ga in eight samples from different sources was measured in an effort to understand differences in reported values of the atomic mass of gallium
During the course of an experiment, a 0.300 M NaCl solution with an initial volume of 25.0 ml is diluted to a total final volume of 26.0 ml. What is the concentration of NaCl in the final solution?
Briefly explain how you would alter the calibration curve technique to determine the concentration of glucose in a urine sample.
Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area of 1.50 μm2
Three gases, hydrogen, argon, and methane are confined in a 8.00 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 5.00 moles of argon, and 2.00 moles of methane. What is the partial pressure of methane?
An unknown solution forms a white precipitate when treated with 6 M HCl. The precipitate is incompletely soluble in hot water but dissolves completely in NH3
In the decomposition of hydrogen peroxide, the percentage yield of oxygen is 93%. What is the actual yield in grams of oxygen if you start with 100 grams of H2O2.
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