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Which end (blue or red) of the visible spectrum has the longer wavelength? Which has the higher frequency? How are the frequency and the period of a wave related?
Problem- A mixture of 0.152 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessel at 500K, producing a mixture of Co and CO2. The total pressure is 0.6879 atm.
Zinc hydroxide,Zn (OH)2} Ksp = 4.1 10^{-17}, is nearly insoluble in water, but is more soluble in strong base because Zn^{2+}} forms the soluble complex ion Zn( OH )_4^{2-}} Kf = 3 10^{15}.
the hydrogen gas formed in a chemical reaction is collected over water at 30 degrees celsius and a total pressure of
Calculate the concentration of Cu in the chloroform phase if 39 mL of a 0.28 M aqueous Cu solution buffered to pH 4 is equilibrated with 12 mL of chloroform.
The temperature of the calorimeter rises from 22.25 oC to 27.20 oC. A 2.500 g sample of glucose (C6H12O6) is then burned in the same calorimeter. The temperature of the calorimeter rises from 20.55 oC to 25.00 oC. What is the Hcombustion of glucos..
How would you prepare the following organic compound from an alcohol and/or ether, and what reagents would you use. CH3OCH2COH(CH3)2 I don't know how to do this with an ether and an alcohol
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile's engine cooling system. If your car's cooling system holds 5.20 gallons, what is the boiling point of the solution
List the "tricks" you learned today about ionic bonds. - Write the electron configuration for Br.- Write the electron configuration for Na.
if the titrant has a molarity of 0.2000 m and there are 50.00 ml of analyte present what is the molarity of the
To produce 225 moles of tetraphosphorus decoxide how many moles of oxygen are required?
In a constant pressure calorimeter 25 mL of 1.0M NaOH reacts with 250 mL of 1.0M HCl and the temperature increases 6.0 degree celsius. What is the enthalpy of this reaction?
Explain what is the lead (II) ion concentration in a solution prepared by mixing 381mL of 0.437 M lead (II) nitrate with 433mL of 0.362 M sodium fluoride. The Ksp of lead (II) fluoride is 3.6 × 10-
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