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what intermolecular force is found in water? draw a picture of 3 water molecules showing this intermolecular force
a reaction that establishes equillibrum with almost no reactants pressent will be one of the following. a) exergonic reaction b) has a negative G degree c) has a large keq d) all of the above
Draw three six-carbon alkenes, each of which forms the same product whether it reacts with HBr in the presence of a peroxide or with HBr in the absence of a peroxide,
Brine is a heavily salted solution used for pickeling. What tests could be used to identify the ions present? What should uoi see
A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution?
How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
Calculate the pH of a 0.0155 M solution of carbonic acid H2CO3. The Ka1 of carbonic acid = 4.3 x 10-7 and the Ka2 of carbonic acid = 5.6 x 10-11.
The vapor pressure of pure water at 70°C is 240. mm Hg. What is the vapor pressure depression of a solution of 150. g of the antifreeze ethylene glycol, C2H6O2, a nonvolatile compound, in 215 g of water?
You have 250.0 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. Determine the concentration of the sugar solution after the water has been added
What is the volume of 295 mL of a sample of gas at 52.0°C and 710. mm Hg if the conditions are adjusted to STP
Phosphoric acid, H3PO4, is a triprotic acid, for which Ka1=7.2 x 10-3, Ka2 = 6.3 x 10-8 and Ka3 = 4.2x 10-13. What is the value of Kb for hydrogen phosphate anion, HPO4 2-?
barium acetate + iron (II) sulfate a) molecular equation; b) net ionic equation: 3. magnesium hydroxide + chloric acid a) molecular equation: b) net ionic equation:
The alpha particles emitted by radon-222 have an energy of 8.8 x 10^-13 J. If a 200. g Pb brick absorbs 1.0 x 10^10 alpha particles from radon decay, what dose in rads will the brick absorb
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