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For the following reaction, 5.43 grams of potassium hydroxide are mixed with excess carbon dioxide. The reaction yields 6.09 grams of potassium carbonate.
carbon dioxide (g) + potassium hydroxide (aq) potassium carbonate (aq) + water (l)% yield=theoretical=
Determine the empirical formula for a substance with the following composition
A single crystal of a metal is oriented for a tensile test such that its slip plane normal makes an angle of 65.5° with the tensile axis. Three possible slip directions make angles of 30°, 48°, and 78° with the same tensile axis.
A 10.60 mL sample of sulfuric acid from an automobile battery requires 34.32 mL of 2.01 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? Sulfuric acid contains two acidic hydrogens.
In the neutralization reaction between sulfuric acid and potassium hydroxide, how much potassium sulfate can be produced if you have 150.0g of sulfuric acid to begin with.
What is the percent dissociation of HNO2 when 0.060g of sodium nitrate is added to 105.0 mL of 0.060 M HNO2 solution? Ka for HNO2 is 4.0 x 10^-4
The vapor pressure of ethanol is 60.1 torr at 25.0 degree C, and its molar heat of vaporization is 39.3kj/mol. Estimate the temperature at which the vapor pressure of ethanol would equal 350. torr?
Why is it important to not dilute an initial sample before it hasbeen loaded
Calculate the de Broglie wavelength of a 143g- baseball traveling at 90mph ?
A hydrogen atom initially in the n=7 quantum state emits a photon having a wavelength of 2.16495E-6 m. What is the quantum number of the final state of the atom?
Which of the following would be expected to have the highest pH?
Determine the mass of copper(II) sulfate, CuSO4 will remain after removing all the H2O(water) from 74 grams of CuSO4 5H2O (Also called Blue Vitriol and Bluestone)?
Suppose that you designed a spacecraft to work by photon pressure. The sail was a completely absorbing fabric of area 1.0 km^2 and you directed a red laser beam of wavelength 650 nm on it from a base on the moon. What is the (a) force, (b) pressur..
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