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Probability of speed lying within a range of speeds:
a. Calculate the percentage of He atoms at 100oC which have speeds in the range between 1200 m/s and 1300 m/s
b. Calculate the percentage of these He atoms that have speeds greater than 5000 m/s
Draw a structural formula of an alkene or alkenes (if more than one) that undergo acid-catalyzed hydration
Write balanced half-reactions and the overall spontaneous reaction. (Type your answer using the format [NH4]+ for NH4+. Use the lowest possible coefficients.)
If the heat of combustion for a specific compound is -1310kj/mol and its molar mass is 60.87 g/mol, how many grams of this compound must
Calculate the number of moles of Br2 that would react with 0.793 moles of AI to form AIBr3?
Calculate the hydrogen Ion concentration, in moles per liter, for solutions with each of the following pH values.
A 20.0 ml sample of 0.200 M Hbr solution is titrated with 0.200M of NaOH solution. Calculate the pH after 16 ml of NaOH has been added.
What was the molar solubility of CaCO3 in this solution (Kb1(CO32-) = 1.8 × 10-4)
The IR spectrum of benzoic acid is included on page 3. Assign three specific absorbance bands (from the peak list below the spectrum) to the corresponding bond vibrations
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
silver iodide in grams will dissolve in a solution that is a 2.0 x 10^-4 M silver nitrate when the system reaches equilibrium
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.4 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
When making an alcoholic beverage, such as beer and wine, Brix is a measurement used to assess the amount of sugar present in the fermentation matrix or grape juice.
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