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Consider the electronic configuration for Mn (Z=25): a.) Write the electron configuration in spdf notation. b.) Write the electron configuration in Noble-gas-core-abbreviated notation. c.) How many unpaired electrons does Mn have? d.) Is Mn diamagnetic or paramagnetic?
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.700M solution of ammonia, NH3, to prepare a buffer solution that ahs a pH of 8.61?
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
From its electronic configuration, predict which of the first 10 elements would be most similar in chemical behavior to the as yet undiscovered element 170.
Intermolecular interactions can be classed as either: strong, moderate, or weak. Give two examples for each class and give approximate values for the magnitude
Calculate the molecular weights of the 5 congeners listed above. What do the trends of log KOA, log KOW, and the negative log of water solubility vs. molecular weight indicate about the relationship between molecular weight and
A Michalson interferometer had a mirror velocity of 2.75cm/s. What would be the frequency of the interferogram for (a) UV radiation of 350 nm. (b) visible radiation of 575nm, (c) infrared radiation of 5.5 um, and (d) infrared radiation of 25 um?
In the titration of 50.0 mL of 0.0200 M C6H5COOH(aq) with 0.100 M KOH(aq), what is/are the major species in the solution after the additon of 5.0 mL of NaOH(aq)
the nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 x 103 Calories. Express this energy equivalence in joules.
Write the isotope needed, by identifying A, Z, and X, to balance the following nuclear fission reaction: 235/92 U+1/0 n--->140/56 Ba+A/Zx+31/0 n
A sample of the unknown complex is analyzed and has an absorbance of 0.528. What is the molar concentration of Cu^2+ ions in the unknown solution?
The first-order reaction 2N2O(g) --> 2N2(g) + O2(g), what is the concentration of N20 after 3 half-lives if 0.25 mol of N2O is initially placed into a 1.00-L reaction vessel
calculate the percentage of empty space in 1 mol of water at 25C. Obtain the density from the experiment " Some Measurements of Mass and Volume." The volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms.
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