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Question- Consider Ar gas at 298 K and 1 atm. If you were to decrease the pressure, while keeping temperature constant, would you expect and increase or decrease in mean free path?
Express your answer using two significant figures.
If the total mass of H2O produced is 22.0 grams, what was the approximate mass of the methane in the original mixture?
A liquid substance has a vapor pressure of 450.0 mmHg at 262.0 degrees celsius and 760.0 mmHg at 325.0 celsius. a) what is the heat of vaporization of this substance? b) what is its normal boiling point?
What is the pH of a solution prepared by dissolving 4.1g of HCl in water to make 455mL of HCl solution?
what is the concentration of H+ ions in a solution of hydrocholoric acis that was prepared by diluting 15.0 mL of concentrated (11.6 M) HCL to a filal volume of 500 mL?
Some solution has an H+ concentration of 10^-10 M. if this solution could be diluted so its new H+ concentration is now 0.01 of the original. what would be the new H+ concentration in M and new pH
show that cos(ix)= e^-x+e^x/2 and isin(ix)= e^-x-e^x/2 this is expressions are called the hyperbolic cosine and hyperbolic sine, respectively, hint start with e^-x=e^i(ix) and e^x=e^i(-ix) and apply euler's formula
Determine the molar amounts of NO, O2 and NO2 after a complete reaction. NO=? O2=? NO2=?
Which of the molecules N2, NO, O2, C2, F2, and CN would you expect to be stabilized by (a) the addition of an electron to form the anion (b) the removal of an electron to form the cation
Show how the following compounds could be synthesized from benzene a. benzoic acid b. aniline c. m-chloroenzenesulfonic acid d. m-chloroethylbenzene e. m-brombenzonitrile f. benzyl methyl ether g
Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa = 4.76) of a) 2:11; b) 1:3; c) 5:1; d) 1:1; e) 1:10
how much work can be done by the engine as it operates through one cycle, how much heat is given off during the isothermal compression, what is the entropy change (for the gas) during the isothermal compression
muscle cells need energy to contract. one biochemical pathway for energy transfer is the breakdown of glucose to
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