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Calculate the molar mass of a compound from the following information. You find that the freezing point of benzene is 5.5 degrees C. You then dissolve 1.60g of the unknown compound in 22.82 mL of cyclohexane. The freezing point of the solution is found to be 2.8 degrees C. The freezing point depression constant for benzene is 4.3 degrees C/m. the density of benzene is 0.8765g/mL
Tetrahedral complexes of Co2+ are quite common. Use a d-orbital splitting diagram to rationalize the stability of Co2+ tetrahedral complex ions.
what is the work in joules done on the system to compress he gas from 24.0 l to 12.5 l against a pressure of 1.5 atm at
for the reaction ch4202 yields co22h2o how many moles of carbon dioxide are produced from the combustion of 100 grams
What chemical test might be used to distinguidh between pentanal and 2-pentanone? Between benzyl alcohol
sodium borohydride reduction experiment write the balanced equation for the reaction and calculae the percent yield
Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acicd is 4.84.
A gas sample in a piston assembly expands, doing 588 kJ of work on its surroundings at the same time that 372 kJ heat is added to the gas.
How do you determine the mass of a AA battery. Why does the battery weigh less when it it dead. What does the Law of Conservation of Mass have to do with this.
Calculate the overall energy changes (in kJ/mol) for the formation of MgF and MgF2 from their elements. The lattice energy for MgF2 is + 2952 kJ/mol.
A balloon is filled with 5.00 mol of an ideal gas at 50.0 degrees celsius and 1.00 atm pressure. The temperature of the gas is increased to 90.0 degrees celsius while the pressure remains constant at 1.00 atm.
the molar mass of the general anesthetic methoxyflurane is 164.97 g mole-1. suppose that this compound be can relied on
Draw the Lewis dot structures of the following compounds. In these structures, all atoms are singly bonded and the octet rule is always satisfied.
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