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1. ectron configuration of a neutral atom is 1s22s22p63s23p2.
a) Draw the orbital diagram.
b) Write a complete set of quantum numbers for each of the electrons.
c) Name the element.
A 21.70mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 3.06g sample of vinegar. calculate the number of moles of acetic acid in the vinegar sample.
an ice cube of 15.1 grams is placed into 304 grams of h2o. compute the change in temperature in the h2o upon completing
a mixture of Phe (pI 5.5), Thr (pI 6.5), Asp (pI 3.0), His (pI 7.6), and Lys (pI 9.8) at pH 9.8 is loaded on an anion-exchange column and then eluted with a pH gradient of lowering pH. what order will the aminoo acids elute? Explain.
For the following electrochemical cell Cu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 1.50 M)|Ag(s) write the net cell equation. phases are optional. do not include the concentrations
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A total of sixteen grams of steam at the temperature of 120 degree Celsius is admitted to the system. Determine the phase composition and temperature at the time when equilibrium is reestablished?
What is the pH of a solution which contains 0.300 moles of Na2HPO4 and 0.200 moles of Na3PO4 per liter of solution?
Problem- What are two major ways that the band gap of an absorbing material influences the efficiency of a photovoltaic cell
When a metal was exposed to light at a frequency of 3.94× 1015 s-1, electrons were emitted with a kinetic energy of 5.80× 10-19 J. What is the maximum number of electrons that could be ejected from this metal
Hard water at home contains dissolved ions (ex. Ca2+ & Mg2+) that react with soap to form a nasty gray substance. Because this gray stuff would ruin your clothes
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
In a reaction that is first-order with respect to reactant A and second-order with respect to reactant B, what will happen to the rate of the reaction if we
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