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Descibe at least 4 possible factors which may influence the amount of light absorbed by a solution and how these factors may affect the absorption (increase, decrease, no effect)
Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate.
An equilibrium mixture for the reaction above contains [H2] = 1.00 M, [N2] = 1.50 M, and [NH3] = 2.00 M. What is the value of the equilibrium constant, Kc, for the reaction?
Consider the reaction 2NH3 + CH3OH → products .How much NH3 is needed to react exactly with 21 grams of CH3OH?
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
In places where meteor impacts have occurred, such as Meteor Crater, other distinctly different SiO2 minerals occur, such as stishovite and coesite.
An electron is confined to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm. What is the length of the box?
2.4 g of a hydrocarbon fuel is burned in a calorimeter that contains 262 grams of water initially at 25.00 C. After the combustion, the temperature is 26.55 C.
A solution contains 29 g of sucrose (C12H22O11), a nonelectrolyte, dissolved in 929 g of water. What is the boiling-point elevation?
Osmium has a density of 22.6 g/cm3. What volume (in cm3) would be occupied by a 21.8 g sample of osmium?
Determine how many significant figures are there in the Fahrenheit result when 7.02C converted to Fahrenheit scale,?
An excess of aluminum foil is allowed to react with 225 mL of an aqueous solution of HCl (d = 1.088 g/mL) that contains 18.0% HCl by mass.
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