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1. How many mL of solution are needed to obtain 53.4 mL of acetic acid from a 31.6 % (v/v) solution of acetic acid?
2. One mole of carbon dioxide is in a sealed piston with volume of 523.2 mL at a pressure of 0.293 atm and 23.2 oC. If the volume of the piston decreases to 474.9 mL what is the new temperature, in oC, of the CO2 gas if the pressure remains constant and no gas escapes?
3. Write word that is made only out of elemental symbols. The longer the word the more points awarded. No profanity please! (ex: LiFe, BArN) (max 3 pts)
A tire has a pressure of 780 mmHg at 27°C. If the tire is heated to 47°C on hot pavement, what the new pressure will be:
Calculate ?rH° for the reaction 2C(s) + 3 H2(g) + ½ O2(g) ? C2H5OH(l) given the information below. C(s) + O2(g) ? CO2(g) ?rH° = -393.5 kJ/mol-rxn 2 H2(g) + O2(g) ? 2 H2O(l) ?rH° = -571.6 kJ/mol-rxn C2H5OH(l) + 3 O2(g) ? 2 CO2(g) + 3 H2O(l) ?rH° = ..
Sodium stearate (C17H35COONa) is a major component of bar soap. The Ka of the stearic acid is 1.3 multiplied by 10-5. What is the pH of 16.5 mL of a solution containing 0.45 g of sodium stearate
The solubility product for CuI(s) is 1.1x10-12. Calculate the value of the cell potential for the following half-reaction.
list three acid, bases, and salt commonly used in therapeutic processes.
how many milimeters of 0.755 M H2SO4 solution is needed to react with 55.0 mL of 2.50 M KOH solution? Given 2KOH (aq) + H2SO4 (aq) ------ 2H2O (I) + K2SO4
Liquids cannot be compressed easily. What does this imply about the amount of space that must be present between the individual liquid particles?
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
Their boiling points in C are: Ne -245, Ar -186, Kr -152, Xe -107. Using the periodic relationship between the noble gases, predict the boiling point of Radon.
How long would it take for 1.50mol of water at 100.0 degrees celsius to be converted completely into steam if heat were added at a constant rate of 16.0 J/s. The specific heat of liquid water is 4.18 J/(g*degrees celsius).
calculate the change in freezing point of water if 0.0053g of a protein with molecular weight 10083gmol is dissolved in
Examine the structures of the following compounds. What functional groups can you identify within the compounds? (They may have more than one.) What structural features do many of these compounds have in common?
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