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The energy required to ionize boron is 801 kJ/mol. What minimum frequency of light is required to ionize boron?
Calculate the intermolecular collision frequency and the mean free path in a sample of helium gas with a volume of 5.0 L at 27 degrees Celsius and 3.0 atm.
How long will it take for a signal to travel that distance assuming that the speed of light in the cable is the same as in a vacuum?
What is the freezing point of a solution of 224 g of ethylene glycol (C2H6O2) dissolved in 1000 g of water?
How much heat is released when 25mL of 0.10 M NaOH reacts with 50 mL of 0.10 M HCl?
The reaction is found to be first order each in iodide and hypochlorite ions, and inversely proportional to the concentration of hydroxide ion present in the solution.
Determine the limiting reactant in HCl + NaOH = NaCl + H2O given 2 moles of HCl and 2.5 moles of NaOH
7.50 mL of 0.125 M HCl is added to the 100.0 mL of the buffer solution. Calculate the new [NH3] and [NH4Cl] for the buffer solution. Calculate the new pH of the solution.
The visual raw meat color was red(outside) and brown(inside) and when mixed with NaNO2 and NaNO3 the color changed to slight maroon and medium brown and pink.
During an experiment assume that you used a 0.560g piece of pure aluminum in the synthesis of alum and collected 5.255g of dry alum. what is your percent yield of alum?
If you used 0.165 mL of acetic anhydride, and 0.167 g of p-aminophenol. How many moles of the non-limiting reageant remained after the reaction was complete?
Ultra-high-vacuum experiments are routinely performed at a total pressure of 1.0 x 10-10 torr. Calculate the mean free path of N2 molecules and the binary number of collisions, Z11, of N2 molecules (per liter per second) at 350 K under these condi..
certain first-order reaction () has a rate constant of 1.00×10-2 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
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