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Assume your mass is 68 kg. The acceleration due to gravity is 9.8 m/s -2. Consider the energy consumed by a 100 W light bulb in an hour. How many flights of stairs would you have to climb to equal the work of the light bulb?
which hydroxide precipitates first as NaOh is slowly added to the solution? b) what is the molar concentration of the first cation precipitated when the other cation just starts to precipitate out of solution?
For a chemical system at equilibrium, the forward and reverse rates of reaction are equal. 3. For an aqueous chemical system at equilibrium, the concentrations of products divided by the concentrations of reactants equals one.
a helium balloon with a volume of 410 mm is cooled from 48 deg celsius to -37 deg the pressure on the gas is reduced
The dissolved oxygen concentration in a sample of pond water was found to be 12.5 mg/L. Express this concentration in g/mL.
An insulated tank contains half liquid and half vapor by volume in equilibrium. The release of a small quantity of vapor without the addition of heat will cause
Calculate the molar solubility of AgCl in a 1.00L solution containing 10.0g of dissolved CaCl2. Compare the molar solubility of Mg(OH)2 in water and in a solution buffered at a pH of 9.0
a. what is the ph of rainwater containing no buffering other than from water itself if the current concentration of
How much heat is gained when a piece of copper metal with a mass of 15 grams is heated from 20 degrees C to 75 degrees C? The specific heat of copper is 0.385 J/g degrees C
Can you explain the wittig reaction for Organic Chemistry?
Glacial acetic acid is 99.5% acetic acid (f.w. 60.052) by weight and has a density of 1.05g/mL. Calculate the volume of glacial acetic acid needed to make 1L of the buffer.
A 32.65-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.00 ml.
Problem- How many mL of 6.00M sulfuric acid are needed to react with 17.6g of aluminum according to the reaction below
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