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what is the concentration of hydroxide ion in a 0.060 M aqueous solution of methylamine. CH3NH2? what is the pH?
How do you find the Kb?
What mass of oxygen gas is required in order to release 6670 kJ of heat to the surroundings by the following reaction
An unknown compound contains carbon, hydrogen, oxygen, and sulfur atoms. When a 10.00 mg sample of the unknown compound was combusted, it produced 16.27 mg of CO2, 5.55 mg of water, and 7.90 mg of SO2.
If 145.0 mL of 0.350 M lithium hydroxide is required to titrate 35.0 mL of an unknown monoprotic acid, what is the molar concentration of the unknown acid.
Determining the free ions of calcium on a similar sample of blood. recommend if the sample requires pretreatment or if it can be calculated directly In each case.
If a reaction mixture contains only N2O and NO2 at partial pressures of 1.0 atm each, the reaction will be spontaneous until some NO forms in the mixture.
determine the temperature at which water will boil in an open vessel when the atmospheric pressure is 400 mm Hg.
Explain, in detail, how you would prepare this solution so a labmate could prepare it from your instructions
Calculate the de Broglie wavelength for each of the following.a 57 g ball with a velocity of 35. m/s b an electron with a velocity 12% the speed of light.
Which of the following has the smallest mass? a. 3.50 x 1023 molecules of I2
Solid silicon and solid magnesium chloride form when silicon trichloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation.
What will be the resultant pressure when the stopcock is opened?
The specific heat capacity of graphite is .71 J/gC. Calculate the energy required to raise the termperature of 283 grams of graphite by 112 degree C.
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