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The quantity of solute versus solvent in a solution is known as concentration. First define, the three concentration units, molarity, molality and mass percent. Given that a 2.00 molar aqueous solution of ammonium phosphate has a density of 1.09 g/mL. Calculate molal and mass percent pf ammonium phosphate in solution.
The resulting solution freezes at 26.5 oC. If Kf for the solvent is 1.74 o C/m then determine the molar mass of the nonelectrolyte compound?
Alkenes can be converted to alcohols by reaction with mercuric acetate to form a ?-hydroxyalkylmercury(II) acetate compound, a reaction called oxymercuration. Subsequent reduction with NaBH4 reduces
What is the solubility in moles/liter for copper(II) iodate at 25 oC given a Ksp value of 1.4 x 10-7. Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!).
Predict whether the following reaction Sn(s) + 2Ag^(aq) = Sn ^2+ (aq) + 2Ag(s) would occur spontaneously at 25c given that [Ag^+] = 2.5*10^-2 M and [Sn^2+] = 0.5M
170mL of O2 gas is collected over water at 25 degrees C and the total pressure is 742 mm Hg. The vapor pressure of water is 23.8 mm Hg at this temperature. What would the volume of the dry gas be at STP? ( hint Daltons Law and Combination Law are ..
by mistake a quart of oil was dumped into a swimming pool that measures 25.0cm by 30.0cm assume the oil spread entirely
How much heat is required to raise the temperature of 48.5g of water from its melting point to its boiling point. Express your answer numerically in kilojoules. Can someone answer this for me in decimal form
The mass spectrum of an organic compound shows the relative abundances of M to be 44.42% and M 1 to be 10.57%. Assuming the peaks are caused by 12C and 13C isotopes
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite
The vapor pressure and enthalpy of vaporization of an unknown substance are measured to be 204.2 torr and 28.8 kJ/mol, respectively at room temperature (298.15 K). Estimate the normal boiling point of the substance at an atmospheric pressure of 76..
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
The flame produced by the burner of gas (propane)grill is a pale blue color when it mixes with propane(C3H8) to burn it completely. For every gram of propane that flows through the burner, what volume of air is needed to burn it completely?
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