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The reaction NO(g)+1/2Br2(g)??>NOBr(g) is second order in nitrogen oxide and first order in bromine. The rate of the reaction is 1.6x10?8 mol/L-min when the nitrogen oxide concentration is 0.020 M and the bromine concentration is 0.030 M. c. at what concentration of nitrogen oxide is the rate 2.0x10^-6 mol/L-min and the bromine concentration one fourth of the nitrogen oxide concentration?
At 1000 K, a sample of pure NO2 gas decomposes. 2 NO2(g) ->2 NO(g) + O2(g) The equilibrium constant KP is 158. Analysis shows that the partial pressure of O2 is 0.44 atm at equilibrium. Calculate the pressure of NO and NO2 in the mixture.
the total pressure in the container is 3.70 atm . Calculate the partial pressure of each gas in the container
A sugar syrup solution contains 15.0% by mass of sucrose C12H22O11. The syrup has a density of 1.06 g/ml
In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard
What is the value of q when 0.0209 g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol.
In an oxidation-reduction reaction, it required 25.6 ml of a 0.65 M potassium permanganate solution to reach the equivalence point with 15.0 mL of an iron(II) sulfate solution.
Consider the reaction CH4(g) + X2(g) → CH3X(g) + HX(g) , where X is a halogen-like atom (Group 7A). Calculate ?H for this reaction if bond energy tables give the following values
In biochemistry laboratories, solutions of sucrose (table sugar, C12H22O11) are used in high speed centrifuges to separate the parts of a biological cell.
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
How would you expect a titration curve of both the solutions and what will happen if HCl is added to the H 2 O and sodium acetate buffer ?
Construct quantum mechanical operators for the following observable: (1) the inverse separation 1/x
Calculate the density of a block.
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