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While light of wavelength 420 nm is focused on a metal surface, electrons are ejected with a speed of 7.00 × 105 m/sec. Explain what is the binding energy of a mole of electrons to the metal?
The standard heat of combustion of propene, C3h6 g, is -2058kj/molc3h6 g. Use this value and other data from this example to determine ^H for the hydrogeneration of propane to propane
Given a barometric pressure of 756.0{rm mmHg} , calculate the pressure of gas sample (a) as indicated by the manometer
65.50 ml of 0.161 m hf is titrated with 0.1200 m naoh. how many mlnbsp of the base are required to reach the
What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5x10^-10.
2NF3 (g) N2(g) + 3F2(g) when 2.06 mol of NF3 is placed in a 2.00-lcontainer and allowed to come to equalibriumk at 800k, the mixture is found to contain 0.0227 mol of N2. What is the value of Kp at this tempature
For the p-block elements, why are the d-orbitals not involved in the bonding process? But why are the d-orbitals involved in the bonding
The volume of an ideal gas in a container is 2.0L. What will the volume of the gas be if the pressure on the container is doubled while the temperature is reduced from 400k to 200k?
The gas stream from a chemical reactor contains 25 mol % ammonia and the rest inert gases. the total flow is 181.4 kg mol/h to an absorption tower at 33 K 1.013*10^5 pa pressure, where water containing 0.005 mol frac ammonia is the scrubbing liqui..
Suppose you measured the pressure with a barometer which was not vertical. You measured the pressure to be 752mmHg and then noticed the barometer
a large weather balloon filled with helium as a volume of 7.00 x 102 l at stp. which expression should be used to find
The Bracket series of emission lines falls in the infrared region of the em spectrum, and each line is a result of an electron falling from a higher Bohr orbit to the n=4 level.
if .150mole of nonvolatile nonelectrolyte solute is dissolved in 800 gramsof water what are the ideal melting point and
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