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A nonvolatile nonelectrolyte compound having a molar mass equals to 18000 g/mol is dissolved to give 100 mL aqueous solution that has an osmotic pressure equals to 26 mmHg at 27oC. The mass (in g) of this compound dissolved in this solution is: A) 2.1 B) 2.3 C) 2.5 D) 2.7
the temperature was returned to the origenal value what would be the partial pressure of each gas be?
consider the reaction in which 410g of Ca(NO3)2 react with just the right amount of magnesium metal in a single replacement reaction. how many grams of lithium are required?
the pH of a saturated solution of a metal hydroxide MOH is 10.85 calculate the Ksp for the compound
Balance the following equation in basic solution. indicate which reactant becomes oxidized during the reaction, which reactant becomes reduced
The dielectric constant of water at room temperature is 78.3. Hint: your answer will come out negative because the interaction is attractive.
Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose that a can contains a residual amount of gas at a pressure of 770 mmHg and a temperature of 30 C
If 0.50 mole H2 and 1.0 mole He are compared at standard temperature and pressure, the two gases will: a. have equal effusion rate
Decide whether or not each of the following metals dissolves in 1 {rm M} {rm HCl}. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
What is the theoretical yield (in mol) of carbon monoxide when 2.62 mol oxygen reacts with 2.08 mol of ethanol (CH3CH2OH) to produce carbon monoxide and water
95.0 mL of H_2O is initially at room temperature (22 C). A chilled steel rod at 2 C is placed in the water. If the final temperature of the system is 21.4 C, what is the mass of the steel bar?
The pH in a 0.25 M solution of the acid HBrO is 4.65. Using this, calculate the value of Ka for the acid HBrO.
a)white the mathematical expression for the equilibrum constant,keq,as a function of the concentrations of the products and reactants for this reaction b)provide two specific ways whereby the le chatelier principle may be applied to this equilibri..
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