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Explain why trans-p-anisalacetophenone would be expected to be more stable than the correspinding cis isomer
The nuclear mass of 141Ba is 140.883 amu. Calculate the binding energy per nucleon for 141Ba.
what mass of nacl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 degc? the freezing point
draw an energy level diagram for Hydrogen starting at n=2 and ending at n=6. (n=1 transitions are high-energy transitions and emit in the ultra-violet region).
If 5.00 mL of HCl require 4.78 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl
A 20.00mL sample of H3Y was titrated with 0.1000 M NaOH. The first equivalence point was reached after the addition of 14.98mL of base. The second equivalence point was reached after the addition of 30.03mL.
Calculate the reversible emf of the cell and its temperature coefficient and determine the amount of heat to be supplied or removed from the cell to maintain a constant temperature of 25 oC under reversible conditions;
if the temperature in the laboratory is 24.5oc and the atmospheric pressure is 1.02 atm what volume would be occupied
A solution that contains 87.2g of an unknown compound in 392.4g of water freezes at -8.00 degrees C. Calculate the molar mass(in units of g/mol) of the solute. Kf of water is 1.86 degrees C/m.
at 25 degrees C a saturated solution of a metal hydroxide has a pH of 9. What is the value of the solubility-product constant (Ksp) of M(OH)2 at 25 degrees C?
A reaction of cyclobutene with NBS and light. Why does a bromide produce on the secondary carbon not the tertiary like a normal bromonation. What exactly does NBS do
A 5.01 g sample containing solid potassium chlorate and other inert impurities was heated in a test tube. The potassium chlorate in the sample completely decomposed into potassium chloride and oxygen gas.
1.if 15.0g of a gas dissolves in 1.00 l of water at 110kpawhat mass will dissolve at 101.325kpa?2.the solubility of an
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