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A reaction that is second-order in one reactant has a rate constant of 2.2 × 10-2 L/(mol · s). If the initial concentration of the reactant is 0.360 mol/L, how long will it take for the concentration to become 0.180 mol/L?
what happens to recrystallization if the crystals obtained by suction filtration are not washed with fresh hot solvent
Diethyl ether has a H°vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0°C. What is its vapor pressure at 85.0°C?
A 60.0 g sample of an alloy was heated to 96.0 °C and then dropped into a beaker containing 87.0 g of water at 24.1 °C. The temperature of the water rose to a final 27.63 °C.
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
Freons are controversial because of the damage they do to the ozone layer in the stratosphere. A 4.33-g sample of a particular freon in a 2.55 L bulb at 25°C has a pressure of 262 torr. What is the molar mass of the compound
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount from pure gasoline. assume the densities of ethanol and gasoline are
Based on their available oxidation states, rank the following metals on their ability to catalyze this and other oxidation-reduction reactions. Rank from best to worst catalyst. To rank items as equivalent, overlap them.vanadium , titanium , manga..
Problem- When 2-butanol undergoes E1 dehydration, three alkenes are obtained. 1) Draw the structures for these alkenes.
Problem- Frequency of an electromagnetic radiation emitted by electric power lines is 60.0 Hz. Calculate the wavelength of this radiation in a) kilometers and b) micrometers.
In the following procedure, we are performing an extraction with ethyl acetate. What compounds are we separating from our product? Procedure
What is the pH of a solution resulting from the titration of 50 mL of 0.050 M acetic acid solution, CH3COOH, with 50 mL of 0.050 M NaOH solution
Problem- What mass of potassium chromate is needed to add to exactly 500g of water to produce a solution with vapor pressure of 21.50 torr at 24 C
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