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An aqueous solution of a compound with a molar mass of 34.02 g/mol is 24.0% by mass as well as has a density of 1.09 g/cm3. Explain what is the molarity of the solution?
calculate the work in kj when 3.00 moles of hydrogen gas are produced from the reaction of sodium in excess water at
calculate the partial pressure of each gas in atm. PN2 PO2 PAr PCO2 Calculate the concentration of each gas in moles per liter at 0 degrees C cN2 cO2 cAr cCO2 (enter answer in scientific notation for this one)
how much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium na with water h2o express your answer
For a certain reaction delta H = -76.0 kJ and delta S= -234 J/K, if n=3 calculate E(standard) for the reaction at 25 degrees celsius
One liter of a buffer solution is prepared by dissolving 0.150 mol of NaNO2 and 0.070 mol of HCl in water. What is the pH of this solution? If the solution is diluted two fold with water, what is the pH?
1. what characteristic properties distinguish the transition elements from the group ia and-iia metals?2. name these
Benzoic acid reactis with sodium bicarbonate (NaHCO3) causing the benzoic acid to take up the sodium on one of the oxygen molecule and making HCO2OH
why is it not possible to convert bromobenzene to benzoic acid by the nitrile method and how could this conversion be
Write out and balance the reaction for the decomposition of calcium chloride in water. Calculate the enthalpy of the reaction.
Write the Kb reaction of hypochlorite, OCl-. Given that the Ka valuse for HOCl is 3.0x 10^-8 calculate Kb for OCl-
12.0 moles of gas are in a 7.00L tank at 25 degrees Celsius. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a= 2.300L^2 and b=.0430mol.
How much 10.0 M HNO3 must be added to 1.00L of a buffer that is 0.001 M acetic acid and 0.1 M sodium acetate to reduce the pH 5.45?
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