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Activating effects question: Using resonance contributors, explain why the nitrile group is a deactivator and a meta director in electrophilic aromatic substitution? A drawing would be helpful too.
Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel.
The density of an 40.0% w/w ethanol (C2H5OH) solution is 0.935 g/mL. What mass of ethanol does 225.0 mL of this solution contain
A 84lb child is prescribed 35 mg/kg of tetracycline per day. What volume of a 0.45 g/mL solution of tetracycline should be given to this patient each day? Answer in milliliters.
When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m.
Calculate the average bond energy of one O3 bond. What wavelength has just the right amount of energy to break the bond
Determine the pH (to 2 decimal places) of a 3.78×10-2 M solution of sodium hydrogen carbonate. If the 5% approximation is valid, use the assumption to compute pH.
Select the IR frequency and number of NMR signals that is diagnostic for either isomer a or isomer b. Isomer A: cyclopentanecarboxamide Isomer B: 6-hydroxyhexanenitrile
Calculate the mole fraction of the salt in the solution.
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2
calculate the number of protons in a sample of pure water with a volume of 1 mL. Then, calculate the fraction of water that is ionized.
the equilibrium constant kp for the reactioncog h2og -gt co2g h2gat 986degc is 0.63. a rigid cylinder at that
the molar heat of combustion of methanol ch3oh is -757kjmol. if 2g of methanol is placed in bomb calorimeter with heat
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