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Explain what is the orbital angular momentum of an electron in the orbitals (a) 3s (b) 3p (c) 3d? Offer the numbers of angular and radial nodes in each case.
The pH is 3.95 at the first equialence point and 9.27 at the second equivalence point. If the acid solution contained 0.2015 g of the acid, what is the molar mass, pKa1, and pKa2 of the acid
Calculate the pH of rainwater in equilibrium with SO2 in a polluted air mass for which the sulfur dioxide concentration is 1.0 ppm.
the metal brass is really a solution of what two elements?1. tin and lead2. tin and copper3. tin and zinc4. copper and
calculate the energy in joules and calories. required to heat 5.25g of water, from 55 C to 64.8 C
Why acetone has significantly high refractive index when a mixture of acetone and water is distilled
Utilize ionization energy and electron affinity values to compute the energy change (in kj/mol) for the subsequent reaction for the following reaction
if a 1.00-g piece of gold density 19.32 gcm3 is hammered into a sheet measuring 8.0 x 5.0 ft what is the average
Calculate the volume in mL of a solution required to provide .85 g of acetic acid (CH3COOH) from a .30 M solution
Based on your observations, what might have happened if you had not followed these instructions? Might this also have affected your percent yield? Explain.
Assume that the following terpenoid is derived biosynthetically from isopentenyl diphosphate and dimethylallyl diphosphate, each of which was isotopically labeled at the diphosphate-bearing carbon atom (C1). Click on the carbons that would be isot..
what is the molecular formula of a compound that contains 28.2% of potassium ,25.6% of chlorine and 46.2% of oxygen ? the molar mass is 138.5u.
Calculate the heat released when 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal as 25°C and 1 atm to form sodium chloride. [H°f(NaCl) = -411.0 kJ/mol
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