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The boiling point of methanol is 72.2o C. The molar boiling point elevation constant for methanol is 2.7o C/m. What is the boiling point (in oC) of a solution prepared by dissolving 50g of acidic acid C2H4O2 in 100g of methanol? (Tbo =94.7oC)
Nonmetals like C,N,S and P are typically the central atom in a molecular compound rather than nonmetals such as O,F,H and Cl. One reason for this is
What is the final volume of a 500.0 mL gas container that increased in temperature from 299 K to 333 K while the pressure increased from 1.00 atm to 1.54 atm
Propane (C3H8) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation for this reaction is C3H8 + 5 O2 ® 4 H2O + 3 CO2. What volume of carbon dioxide is produced when 2.8 L of oxygen are consumed?
What is the pH of this buffer solution? (Neglect the volume change that occurs with addition of solid sodium nitrite) b.) Calculate the pH when 2.00 mL of 0.0275 M NaOH are added to 50.0 mL of buffer solution.
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
All numerical answers must be reported to the correct number of significant figures. What volume of 1.000 M LiCl must be diluted with water to prepare 250.0 mL of 0.100 M LiCl
why does ch3-ch2-o-h have a higher boiling point than ch3-o-ch3 even though they have the same molar
If 8.8 mg of iodine-123 is used in an experiment, how many milligrams of iodine-123 should remain after 50 hours. Assume that iodine-123 has a half-life of 10 hours.
For the following electrochemical cell Cu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 1.50 M)|Ag(s) write the net cell equation. phases are optional. do not include the concentrations. Calculate the following values using standard potentials as needed.
what is the partial pressure of hydrogen gas in a mixture of hydrogen and helium if the total pressure is 588 mm hg and
What is the pressure in kilopascals in s 38.0L balloon st 22 C filled with hydrogen produced by the reaction of 854.25 g of potassium with water
Solid sodium peroxide (Na2O2) reacts with liquid water yielding aqueous sodium hydroxide and oxygen gas. How much heat is released
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