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Activating effects: Using resonance contributors, explain why the methoxy group is an activator and an ortho/para director in electrophilic aromatic substitution? A drawing would be helpful too
Why are we being so careful to eliminate moisture from the reaction vessel, solvent, etc? What is the reaction that will occur if water is present?
if the freezing point of pure toluene is -95.15 oc and its freezing point depression constant is -8.38 ocmolal what is
A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. a. What volume of base is needed to reach the equlivance point. b. Determine the pH of the equlivance point.
balance the following equationcus agno3aq ags cuno32aqs and aq in parantheses refers to the phase of the reactants
Which solute would provide the shaper end point in a titration with 0.1 M HCl: use ka or kb values to answer this question. (a) 0.10 M NaOCl or 0.1 M hydroxylamine (b) 0.10 M NH3 or 0.10 M sodium phenolate (c) 0.1 M methylamine or 0.10 M hydroxyla..
Use a spreadsheet to calculate the composition of dry air at 5400K and 1 bar. Take the initial composition as .78 mol N2, .21 mol O2 and .01 mol Ar. Neglect the ionization of NO.
Given the following activation energies, what is the rate constatnt for a catalyzed and uncatalyzed decomposition of hydrogen peroxide(H2O2). Ea(uncatalyzed) 76kJ/mol, Ea(catalyzed) 19JkJ/mol
A sample of a gas weighs 2.880 g and has a volume of 1010.0 ml at 685.0 torr and 29.0 C. What is its molar mass
What is the mass percent of MgO in the mixture? Assume that only the MgO reacts with CO2.
What is the mass in grams of CO2 that would be produced if 52.0 g of C5H8O4 were allowed to react completely in excess oxygen?
Fundamentally, why would any line in the hydrogen spectrum between 250 nm and 700 nm belong to the balmer series. How much energy in kj per mole does it take to ionize an H atom
acetic acid has one carbon- oxygen bond that is 1.36 A nd another 1.23 A however sodium acetate has two equal carbon- oxygen bonds
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