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What is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? Assume that the contribution of protons from H2SO4 is near 100
a solution contains 8.90g of kbr in 500.0ml of solution and has an osmotic pressure of 6.99atm at 25 degree c.
The standard enthalpy of formation of gaseous water is -241.82 kj/mol at 298 K. Estimate this value at 370 K. The molar heat capacities of hydrogen, oxygen, and gaseous water are 28.82, 29.36, and 33.58 J/(K x mol).
the mineral greenockite is a rare yellow sulfide of cadmium that is 78.0 cadmium and 22.0 sulfur by mass. determine the
5 grams of water are evaporated converted to gaseous water vapor. is the mass of the water less than equal to or
a) what is the concentration of the dye in a solution with a percent transmittance reading of 45.8% at 640 nm b) if the solution in part a was made by taking 20.00 mL of a stock solution and diluting it to 100.00 mL, what is the concentration of ..
A catalyst increases the overall rate of reaction by lowering the activation energy, Ea, for A) both the forward reaction and the reverse reaction.
a sample of gas is collected over water at a temperature of 35.0c when the barometric pressure reading is 707 torr.
thomas poured 25 ml of 0.60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
What is the molarity of a solution that contains 343.0 grams of phosphoric acid, H3PO4, in 2.0 L of solution
What is the source of drinking water in your community? What steps are used in purifying it? Be sure to list the name of the reference you use to gather this information. If you use an internet source, provide the name of the internet source and ..
What mass of sodium nitrate (in g) is required to make 2.50L of a 0.150M solution of sodium nitrate
An unknown gas has been determined to have the empirical formula CH2. At 27°C and 0.966 atm, the gas has a density of 1.65 g/L. What is the molecular formula of this gas
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