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Suppose Aniline (MW93 g/mol) co-distills with water 98.2 C then the vapor pressure of water at 98.2 C is 717 mmHg. It is required to isolate 10 g of aniline. Explain what is the minimum volume of water needed to isolate 10 g of aniline in a steam distillation at 760 mmHg?
2-bromooctane in 10 mL ether solution gave an observed rotation of -1.8° in a 10 cm cell at 20°C. Calculate the specific rotation of this solution.
when 1.50 l of 1.00 m na2so4 solution at 30.0 degrees celcuis is added to 1.50 l of 1.00 m bano32 solution at 30.0
A typical automobile gets 30 miles per gallon of gas and drives 12,000 miles every year. Assuming that octane (C8H18, density 0.7025 g cm-3) is a principal component of gasoline
what concentration of NH4+ must be present in a 0.20M aqueous ammonia solution to prevent the percipitation of Mg(OH)2 if the ammonia solution
Calculate the percent by mass of the solute CH2Cl2 in a solution made by mixing 453 mL of methylene chloride to 2.36 L of the solvent acetone
A sample of gas is collected over water at a temperature of 35.0C when the barometric pressure reading is 707 torr. What is the partial pressure of the dry gas, given PH2O = 42.2 torr?
The next day you notice that some of the gas has leaked out. The pressure and temperature remain the same, but the volume has changed to 12.0 . How many moles of gas () remain in the cylinder
a solution of 4.00 g of sodium carbonate is mixed with one containing 4.00 g of silver nitrate. after the reaction is
The substituent CH3 is connected to the 'CH' group (i.e. 2nd carbon from the left) instead of the methyl group on the left end
What is the [Cu2+] concentration at 25 oC in the cell Zn(s)|Zn2+(aq, 1.0 M)||Cu2+(aq)|Cu(s)? The cell emf is 1.03 V. The standard cell emf
How many millimeters of 2.551 M sulfuric acid are required to completely neutralize a 556.97 mL aliquot of 0.0997 M sodium hydroxide
A lake has a pH of 8 and the total molar concentration of nitrogen species (NH3 and NH4+) is 7.1×10-4 mol/L. what is the percentage of aqueous NH3 in the lake
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