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What is the function of the BaSO4 solution as a traditional method of measuring a knife wound in a homicide victim's body? Describe a medical application for BaSO4
an unknown compound has the empirical formula ch2. a 0.050-mol sample of this compound weighs 4.20 g. what is the
draw the structure of the expected dichlorocarbene adduct of methyl methacrylate. another product could have been obtained. It is the chloroform adduct to the double bond (Michael type reaction). what would this structure look like.
If 20.8 mL of NO2 gas is completely converted to N2O4 gas under the same conditions, what volume will the N2O4 occupy?
An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide. H° f [NH3(g)] = -45.9 kJ/mol; H° f [NO(g)] = 90.3 kJ/mol; H°f[H2O(g)] = -241.8 kJ/mol
The temperature rises from 19.25C to 22.17C. If the heat capacityof the calorimeter is 98.6J/C, calculate the enthalpy change forthe above reaction on a molar basis
Lithium hydrogen carbonate decomposes by heat; the reaction is represented by the balanced equation: 2LiHCO3 (s) --------> Li2CO3(s) + CO2(g) + H20 (g)
Calculate the equilibrium constant, K. (e) Which side of the reaction (reactants or products or neither) is favored structurally?
the hydrogen atom relaxes to a lower energy level, emitting light of 397nm. What is the value of n for the level to which the electron relaxed
What is the volume in mL of 0.845 M NaOH(aq) needed to reach the equivalence (stoichiometric) point in the titration
Solve for the new pressure in each of the following, with n and V constant: 1)A gas with a pressure of 1.25 atm at 90 Celsiusis cooled to -17 Celsius. 2)A sample of N2 with a pressure of 790 mm Hg at -75 Celsius is heated to 34 Celsius
Calculate the value of E°cell for a voltaic cell described in each of the following. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4. (a) Br2(l) is reduced to Br
what adjustment should be made to the mobile phase to bring the compound off sooner? why?
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