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The thickness of a piece of paper is 0.0036 in. Suppose a certain book has an Avogadro's number of pages; calulate the thickness of the book in light years.
In an experiment, 0.40 mol H2 and 0.40 mol I2 are mixed in a 1.0- Liter container, and the reaction forms HI. If Kc = 49 for this reaction, what is the equilibrium concentration of HI
Calculate the concentration of ALL species in a 0.25 M solution of ethylammonium chloride (EtNH4Cl). The Kb value for the weak base ethylamine (EtNH2) is 5.6 x 10
Balance the following equation in acidic solution- H2S(g) + NO3-(aq) ? S8(s) + NO(g) What is the coefficient of water
At 700 Kelvin the Kp=54 for H2 + I2 > 2HI and Kp=1.04E-4 for N2 + 3H2 > 2NH3. Determine the Kp for reaction 2NH3 + 3I2 > 6HI + N2 at 700 Kelvin.
What is the total pressure (Ptot) in the container in torr? What is the partial pressure of argon (Par) in the container in torr?
Use a table of Ka or Kb values to determine whether Kc for the following reaction is less than, equal to or greater than 1 CH3CO2- + HSO4- CH3CO2H + SO42-
Atoms of different elements also have different average masses, just like kernels and marbles. Use the mass values from a periodic table to answer the following questions.
What mass of ammonium chloride should be added to 2.45L of a 0.145M NH3 in order to obtain a buffer with a pH of 9.45
how would you know a strong acid from a weak acid without looking at some data? for example hbr hi hci are all stong
Consider the reaction 2 Al2O3(s) ! 4 Al(s) + 3 O2(g) . H = +3339.6 kJ/mol What is H for the formation of one mole of Al2O3(s) from the elements.
Calculate the standard cell potential and the equilibrium constant for the oxidation of ethanol to acetaldehyde. Calculate the equilibrium constant.
Polyethylene is a synthetic polymer or plastic with many uses. 1.41 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of solution, and the osmotic pressure was found to be 1.86 torr at 25 deg C. What is the approximate mol..
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