How can explain the average atomic mass of m
Determine the average atomic mass of M when the M2S3(s) is heated in air, it is converted to MO2(s) and a 4.200 g sample of M2S3(s) shows a decrease in the mass of 0.239 g when it is heated in air.
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An electron in hydrogen absorbs a photon having a wavelength of around 19.1 µm and ends up in the n = 8 state. Determine the initial state of the atom?
Calculate the molarity of Cl- in this solution when a solution is prepared by dissolving the 23.7g of CaCl2 in the 375 g of water and the density of the resulting solution is 1.05 g/ml.
Determine the pH of the solution after the addition of 29.7mL of NaOH solution? Consider the titration of the 50.0 mL of 0.217 MHN3 (Ka = 2.6 * 10 ^ -5) with 0.183NaOH.
If the dissociation of any H2 molecule were accomplished by the absorption of a single photon whose energy was exactly the quantity required, explain what would be the wavelength in meters?
When and electron relaxes from the n=2 level to the n=1level in the H atom, how do you calculate the energy of the light emitted in (Kj/mol).
Two objects attract each other having a gravitational force of magnitude 9.90 x 10-9 N when separated by 19.6 cm. When the net mass of the objects is around 5.09 kg, determine the mass of each?
Determine the numbers of un-hybridized d-orbitals are on the central atom of SeCl2? Explain what kind of hybrid orbitals does PF3 use in the bond formation?
A hiker of 200 lb having a backpack of 50 lb hikes from 1 camp at 10,000 ft altitude to camp 2 at 13,300 ft in 8 hours. Determine how much net work is done?
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