Calculate the smallest increment of energy
Calculate the smallest increment of energy that an object can absorb from yellow light whose wave length is 214nM.
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Consider 2Al + 6HCl yields 2AlCl3 + 3H2, the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14 L of H2 at 351 K and 1.11 atm?
If 147 mL of wet H2 is collected over water at 24°C and a barometric pressure of 735 torr, how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr at 24°C.)
What is the mass of the solid NH4Cl formed when 64.0 g of NH3 are mixed with an equal mass of HCl? What is the volume of the gas remaining, measured at 14.0° C and 752 mmHg?
How much heat energy is required to raise the temperature of 0.365 of copper from 23.0 to 60.0 ? The specific heat of copper is 0.0920 cal/(g*Celsius) .
A certain first-order reaction (A to products) has a rate constant of 4.20×10-3 at 45 degrees celcius. How many minutes does it take for the concentration of the reactant,[A] , to drop to 6.25 of the original concentration?
To what volume will the gases expand against a constant pressure of 660. torr if all the energy of combustion is converted into work to push back the piston?
What mass of titanium displaces 65.2 mL of water at 25 ^circ {rm C}
What is the molality of a solution prepared by dissolving 413 mg of KBr in 6.45 mL of water at 25.0 0C. The density of water at 25.0 0C is 0.997 g/mL.
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