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If a plot of ln k versus 1/T for this reaction has the equation y = -1.32 x 105x + 111, what is the activation energy for this reaction?
How many moles of sodium bromide can be produced from the reaction of 1.03 moles of sodium with 0.650 moles of bromine gas? 2 Na(s) + Br2(g) > 2 NaBr(s)
what mass of stomach acid will neturalise an antacid tablet containing 0.1g of magnesium hydrogen carbonate
a liquor of 20.00 ml a of 0.120 m cu solution is titrated with a 0.100 m solution of ce4 according to the given
In a gas mixture, the partial pressures are nitrogen 430 , oxygen 115 , and helium 235 . What is the total pressure ( ) exerted by the gas mixture?
the concentration of alcohol ch3ch2oh in blood called the blood alcohol concentration of bac is given in units of grams
A certain wavelength is 1100 nm. What is the energy for a mol of photons (J/mol) with this wavelength
Xanthine is a biological precursor of uric acid. What can you say about the molar absorptivity of xanthine if absorbance measurements of 250 μM, 300 μM, and 350 μM buffered aqueous solutions
The compound K2SiO 3 • χH2O is a hydrated crystal. It is analyzed for percent water in a procedure similar to the laboratory assignment with barium chloride
A solution containing 10g of a non-ionic compound in 90g water has a freezing point of -3.33 degrees C. Given that Kf = 1.86 degrees C/m for water
Consider the following cell: Pt|H2(g, 0.645 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.20 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion con..
A compressed gas cylinder, initially at 13.7 MPa and 23°C is in a room where fire causes the temperature to reach 450.°C. What is the new pressure (in atm) in this cylinder
25 mL of 0.100 M AgNO3 are mixed with 35 mL of 0.0500 M K2CrO4. (a) Calculate the concentrations of each species at equilibrium.
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