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The U.S. Food and Drug Administration lists dichloromethane (CH2Cl2) and carbon tetrachloride (CCl4) among the many cancer-causing chlorinated organic compounds. What are the partial pressures of these substances in the vapor above a mixture containing 1.05 mol of CH2Cl2 and 1.85 mol of CCl4 at 23.5°C? The vapor pressures of pure CH2Cl2 and CCl4 at 23.5°C are 352 torr and 118 torr, respectively. (Assume ideal behavior.)
- PCH2Cl2 = ? torr CH2Cl2
-PCCl4 = ? torr CCl4
A 125.0mL sample of a solution that is 2.9 * 10^-3M in AgNO 3 is mixed with a 230.0mL sample of a solution that is 0.11M in NaCN. After the solution reaches equilibrium, what concentration of Ag + (aq) remains?
Problem- Suppose you have a sample of potassium chloride weighing 10.95 grams. What mass of sodium nitrate would you need to have the same number of molecules in each sample. Elaborate the complete solution
if 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
What is the maximum mass of aspirin (the theoretical yield) that could be produced in this reaction?
Calculate the amount of N2 gas released (in liters) when the diver returns to the surface of the water where the partial pressure of N2 is 0.80 atm.
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Many important drugs contain the amine functional group, which makes them basic. Many drugs also contain an amide group, which is effectively neutral. Suggest a way to separate ephedrine, a stimulant and decongestant drug shown below
Describe the chemical and physical properties of seawater. Describe two different methods used to convert seawater into drinkable water.
The lethal inhalation dose of sarin for a 200 pound person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.
If 15.0 mL of 4.5 M NaoH are diluted with water to a volume of 500.0 mL, what is the molarity of the resulting solution? Please include explanation, balanced equation, and calculations.
Carry out the following operations, and express the answer with the appropriate number of significant figures. a) 320.5 - (6104.5/2.3) b) [(285.3 x 10^5) - (1200 x 10^3)] x 2.8954
If an unknown substance has a mass of 0.6035g and a volume of 0.550 mL, calculate the density of the substance. Please show any unit conversion factors. Your answers must have the correct number of sig figures. a. g/ml b.g/l c. kg.ml d.kg/dm^3.
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