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Water from a 5-mL pipet was drained into a weighing bottle whose empty mass was 9.974 g to give a new mass of 14.974 g at 26 ºC. Find the volume of the pipet
gas is introduced into an evacuated 3.58 L flask at 65 deg. C, what is the pressure inside the flask
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which depicts the type of substitution which occurs. Explains how this mechanism accounts for the relative rate of reactivity of 1°, 2°, and 3° halides in this rea..
How much heat must be applied to a 18.3 g sample of iron (s=0.449J/(g x *C) in order to raise its temperature from 23.8*C to 356.6*C
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10-7 m.
sunlight with a wavelength greater than 240nm. What is the energy available for the dissociation of molecular oxygen at 200nm?
Determine the total number of valence electrons in each of the following: a) COCl2; b) N2O; c) ClO2^-; d) SeCl2; e) PBr3
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
What volume of pure O2(g), collected at 27°C and 746 torr, would be generated by decomposition of 128 g of a 50.0% by mass hydrogen peroxide solution?
if a saturated solution of NH4NO3 at 70 degrees Celsius was cooled to 10 degrees Celsius, how many grams of solute will separate if the quantity of the solvent is 98 grams?
In a titration experiment, 50.0 mL of 0.375 M HI solution is required to neutralize 35.0 mL of Ca(OH)2 solution. What is the concentration of the Ca(OH)2 solution?
At a certqain temperature and pressure, one liter of CO2 gas weighs 1.65 g. What is the mass of one liter of N2 gas at the same temperature and pressure
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