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The compounds listed at this point are all over-the-counter pain relievers. Compute the empirical formula for each compound acetaminophen (Tylenol): C 63.56; H 6.00; N 9.27; O 21.17
a solid sample containing some Fe+2 ion weighs 1.062g. It requires 24.12mL 0.01562 M KMnO4 to titrate the Fe+2 in the dissolved sample to a pink end point.
benzoic acid is a monoprotic weak acid with ka 6.30 x 10 to the 5 negative. what is the ph of a solution of benzoic
Using your knowledge of hydroboration/oxidation mechanism, predict major and minor products
Consider an insulated system containing 150 g of liquid water and 150 g of ice at equilibrium under atmospheric pressure. A total of 22 g of steam at 120±C is admitted to the system.
what is the balanced equation for the main reaction? equation for important side reactions? why was ethanol, not methanol, used as the organic solvent?
What are the major products of reaction of each of the following with (i) propanal and (ii) propanone. (a) LiAlH4 / THF then acidic workup (b) PhMgBr then acidic workup
A sample of gas is collected over water at c and mm Hg. The collected gas occupies 130 mL. The vapor pressure of water at 23.5 c is 21.7 mm Hg. The approximate molecular weight of this gas
Include square brackets around the coordination complex. Do not include the oxidation state on the metal. Use parentheses only around polyatomic ligands. For ethylenediamine use (en) in the formula.
Assuming the difference in relative boiling points of methyl acetate (bp 57ºC) and 2-butanone (bp 80ºC) is caused by the difference in their dipole moments; predict which compound has the greater dipole moment. Use a vector analysis of bond dipole..
the vapor pressure of dichloromethanech2cl2 at 0 degrees c is 134 mmhg. the normal boiling point of dichloromethane is
Calculate the standard enthalpy of formation of methane, CH4 (g), using a C-H bond enthaply of 413 kJ mol-1 and the atomization enthalpies of 716.682 and 217.96 kJ mol-1, respectively for C and H.
Calculate the grams of iron ion present in a 1.25 mL of a solution that required 2.20mL 0f 0.002115 M KMnO4 in a titration going to a faint pink endpoint.
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