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What is the total coordination number of a central atom of methane (CH4)?
If the molality of your solution is 0.30, calculate the contribution to the percentage error in your result due to not correction for the errors int he thermometer readings.
The temperature of the calorimeter and the water rises from 30.87 degree centigrade to 38.91 degree centigrade what is the heat of combustion per mole of nitrocaine
Illustrate the equilibrium equation between the conjugate acid base pair of acetic acid (CH3COOH) when dissolved in water.
what is the density of a block of marble that occupies 238 cm3 and has a mass of 973
For a helium atom in a 1D box, calculate the value of the quantum number of the energy level for which energy is equal to 3/2 kT at 25C (A) for a box 1 nm long (B) for a box 10-6 m long.
Gibbs energy is fnxn of P & T derives a relation that predicts G decreases with temperature at constant pressure.
A ground state H-atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energylevel. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to return to the ground state.
it is found that 1.431g of element x ciontains 7.509 *10^21 atoms. calculate the atomic mass of x
From equation E=kQ1Q2/d as well as the ionic radii given in the figure, Compute the potential energy of the subsequent pairs of ions. Presume that the ions are separated by a distance equal to the sum of their ionic radii.
Determine the number of significant digits in each number and write out the specific significant digits.
Explain different moderators used in nuclear reactors
what molecule would give the following mass spec data? m/z =15, 29, 43, 57 provide the dominate peaks in the spectrum. the m/z =57 (m-29) is the base peak. and the mz = 43 and 29 ions are also abundent.
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