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Calculate the molar mass of an unknown liquid for which 3.33 L of its vapor at STP weighs 10.88 g.? Where the earth /the universe come from ? Help evaluate the Integral from 0 to pi/6 for tan(2x)/cos^2(x)? At what speed does a human fall from an airplane towards the earth? At what point do they arrive at maximum speed? The equilibrium constant for the reaction H2O = H+ + OH- is 1.0 x 10-14 at 25°C. What is the value of K for the reaction 4H2O = 4H+ + 4OH-?

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