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For each of the following pairs of solute and solvent, predict whether the solute would be soluble or insoluble:
1. Malic acid in water
2. Naphthalene in water
3. Succinic acid in hexane
4. 1-Decanol (n-decyl alcohol) in water
Calculate the pH of a 0.10 M solution of sodium formate (NaHCOO) given that the Ka of formic acid (HCOOH) is 1.8 x 10-4.
show the total ionic and net ionic forms of the following equation. make sure the equation is balanced before proceeding. Fe(s) + CuSO4(aq)
Determine the enthalpy for the partial combustion of methane to carbon monoxide.
You are provided a neutral (pH 7.0) aqueous solution of citric acid, caffeine, and triethyl amine. Provide a flow chart for how you would isolate pure caffeine from this mixture using, calcium carbonate, dichloromethane, sodium sulfate(drying), an..
The name of this covalent compound is nitrogen trioxide. d. The name of this ionic compound is manganese oxide.
What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 238 nm? [Data: c = 3.00 x 108 m/s; h = 6.63 x 10-34 Js ]
Calculate the pH of the solution that results from each of the following mixtures. a)140.0 mL of 0.26M HF with 230.0mL of 0.32M NaF b)185 mL of 0.12M C2H5NH2 with 265mL of 0.20M C2H5NH3Cl
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J ..
A 0.1018 g sample of copper metal is dissolved in 14 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 206.3 mL. (Calculate the molarity of Cu2+.)
A certain dry mixture contains only three compounds: silver nitrate ( AgNO3), magnesium chloride (MgCl2), and barium nitrate Ba(NO3)2. When 1.253 g of the mixture was added to excess water, 0.114 g of a dry precipitate was recovered by filtration...
Draw the Lewis structure and structural formulas for CCl3F. Sketch the spacefiling model and the charge-density model for this molecule.
The formula for the illegal drug cocaine is C17H21NO4. What is the percentage of hydrogen in the compound?
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