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Explain which if the subsequent reactions would serve as a reasonable synthesis of the following racemic alcohol 2-phenyl-2-butanol
A volume of 12.8 L is occupied by 0.57 mol of helium gas. Explain what is the volume of 0.78 mol of helium gas under the same conditions?
octane has a density of 0.692 grams per centimeter cubed at 20 degrees celcius . how many grams of oxygen molecules are
Use standard enthalpies of formation to calculate the enthalpy changes in each of the following equations: A) Solid magnesium carbonate decomposes when strongly heated into solid magnesium oxide and carbon dioxide gas.
After 42 days a 2.0 g sample of phosphorus 32 contain only 0.25 g of the isotopt. what is the half life of the phosphours 32 ?
The element chromium is thought to be a cancer causing agent. Chromium in the form of the chromate ion in a water soluble compound presents a risk to humans
If 158 mL of wet H2 is collected over water at 24C and a barometric pressure of 737 torr, how many grams of Zn have been consumed?
Newton's third law of motion can be stated like this: "For every action, there is an equal and opposite reaction." How are Le Chatelier's Principle and Newton's third law similar? How are they different?
An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 800 J/min for 500 min .
Entire combustion of a 3.54g sample of procaine with excess O2 formed 8.58 g of CO2 as well as 2.70 g H2O. Another sample of mass 2.35 g was originate to contain 0.279 g of N. Explain the molar mass of procaine was found to be 236. Determine the m..
The Plank distribution gives the energy in the wavelength range dat the wavelength. Compute the energy density in the range 650 nm to 655 nm inside a cavity of volume 100 cm3 when its temperature is 25c
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
Copper has a specific heat of 0.092 cal/(g·°C). When 52.7 cal of heat is added to a piece of copper, the temperature increases from 22.4°C to 38.6°C. What is the mass of the piece of copper
the effect of temperature on gases confined to small volumes. What is the pressure of 3.40mol of gas D measured at 251 C in a 1.75-L container assuming real behavior?
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