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What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear? given 90.5KJ/mol
Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated.
A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(..
Please rank the following aromatic compounds in order of their reactivity in electrophilic aromatic substitution: anisole, nitrobenzene, acetophenone, toluene, benzene. Briefly explain your answer.
if the density of carbon dioxide in air is .65mg/L, what volume is occupied by 25kg of carbon dioxide?
What is the final concentration of a solution made from 7.1 mL of 0.8 M CuSO4 and 14.3 mL of water?
The solubility of a gas in water is 0.22 g/L at 20.0 kPa of pressure. what is the solubility when the pressure is increased to 115 kPa?
What volume in mL of 2.00 M sodium bicarbonate solution is needed to neutralize 25.0 mL of 4.00 M HCl?
A certain pesticide is fatal to fish fingerlings at a level of 0.5 parts per million in water. A leaking metal can containing 10.0 kg of the pesticide was dumped into a stream with a flow of 10.0 Liters per second moving at 0.7 km/hr.
5.0 g of H2O at 23.0 oC is added to 100.0 g of H2O at 67.5 oC. What is the temperature of the resulting mixture
If 4.00 ml of vinegar needs 42.0ml of 0.110M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10qt sample of this vinegar?
Microscopic representations for four different solutions containing bases are shown below. What are the relative strengths of the bases shown in I-IV?
Determine if the sample has non-volatile impurities (dissolved in it) b. If found to contain such impurities, determine a suitable method for its purification
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