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the density of aluminum is 2.7 g/cm cubed, if the volume of this object is 12ml, what is the mass of the grams?
Write the expression for the equilibrium constant, Kb, for methylamine also compute the molar concentration of OH- in the 50.0 mL sample of the CH 3 NH 2 solution.
The heat of solution of ammonium nitrate is 26.2 kJ/mol. If a 5.368 g sample of NH4NO3 is added to 40.0 mL of water in a calorimeter at 23.5°C, what is the minimum temperature reached by the solution.
Is the solubility of a cation predictable from the position of its element in the Periodic Table? Is precipitate color predictable from the position of the cations element in the Periodic Table?
You have two gas tanks, one is 7.00 L and the other is 3.50L, and one of the tanks has oxygen in it and the other has acetylene. If the tank wth the oxygen has a pressure of 145 atm, what is the pressure of the other tank?
Calculate the final temperature when a 16.4 gram sample of ice at 0oC is placed into a styrofoam cup containing 126 grams of water at 72.7 oC. Assume that there is no loss or gain of heat from the surroundings.
A gas occupies a volume of 458 mL at a pressure of 1.01 kPa and a temperature of 295 K. When the pressure is changed, the volume becomes 477 mL.
Determine the gram-formula mass of the product of this reaction. Include proper units.
What is ozone and how it works as a protective molecule for our environment? What are the effects of CFCs on the ozone layer.
A solution formed by mixing 11.0 ml of 0.110 M HBr with 25.0 Ml of 0.190 M HCl. what is the ph of the strong acid?
What happens to the time at which the mid point of the breakthrough curve exists the column if the particle size is halved but the adsorption isotherm and column size stay the same?
how many regions of high electron density are there around the central atom of the molecular structure of SbCl3.
Calculate w (in kJ) when 265 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 358 K
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