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which of these configurations are in the excited state (mark all that apply) 1s2 2s1 1s2 2s2 2p3 [Ne] 3s2 3p3 4s1 [Ne] 3s2 3p6 4s3 3d2 [Ne] 3s2 3p6 4f4 1s2 2s2 2p4 3s2
What is the mass of a piece of aluminum that is found to displace 13.4 ml of water and has a density of 2.66 g/cm^3
What is the NMR spectrum of benzene, Suppose Dewar,Ladenburg,and Kekul?? had had a 13 C NMR spec- trometer.How many signals would the various candidates
What feature of atomic emission spectra is incorporated in the schrodinger model of the hydrogen atom
a graduated cylinder contains 129 of water. a 17.0 piece of iron density 7.86 and a 21.0 piece of lead are added.
What is the pH of the solution created by combining 2.00 mL of the 0.10 M base with 8.00 mL of the 0.10 M acid?
In solving weak acid equilibrium problems to find [H+] or pH, a major assumption is usually made. This major assumption can be represented by the following
Calculate the kinetic energy of the goose in joules if the goose has a mass of 16.8lb (pounds) and is flying at 10.3miles/h (miles per hour). ?
how many moles of liquid unknown will be present in a 2 m solution? Also, assuming that the molar mass of the liquid unknown is about 50g/mol, calculate the approximate mass of liquid unknown that should be added to your water-ice mixture.
In order to buffer a solution at a pH of 4.57, how many grams of sodium acetate, NaCH3COO should you add to 500 mL of a 0.150 M solution of acetic acid (CH3COOH)
Complete the following reaction: Pb-210 decays by ? (beta) emission to form what new necleus? Write the complete nuclear equation.
Draw a mechanism to demonstrate how pyridine catalyzes the hydrolysis of acetic anhydride to two molecule of acetic acid. Is this reaction reversible? why or why not?
On a Particular summer day, the temperature is 30.0 degrees Celsius and the relative humidity is 80.0% ( which means that the partial pressure of water vapor in the ambient air is 80.0%
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