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The energy from radiation can be used to cause the rupture of chemical bond. A minimum enery of 941 kj/mol is required to break the nitrogen-nitrogen bond in N2. What is the longest wavelengh of radiation that possesses the necessary enery to break the bond? What type of electromagnetic radiation is this?
Instead of 6 M NaOH being added to the test solution, 6 M HCl is added. How will this affect the test for the presence of ammonium ion in the solution? Explain.
Calculate the equilibrium constant, Ka for the acid, HA if, at equilibrium, the pH of a 2.3 M solution of HA is 1.62
A water solution containing 2.00 g of an unknown molecular substance dissolved in 10.00 g of water has a freezing point of 4.0°C. a. Calculate the molality of the solution.
An aqueous solution of ethanol, C2H5OH, is 19.00% ethanol by mass and has a density of 0.9700 g mL-1. Calculate the molarity of the ethanol solution.
A mixture is made from 100ml of 0.1M Mg2+ ions and 300ml of 0.1M F- ions. A precipitate forms. Determine the concentration of each ion in solution given that Ksp of MgF2 is 3.7×10-8.
silver nitrate agno3 reacts with ferric chloride fecl3 to give silver chloride agcl and ferric nitrate feno33. in a
if 6.795 g of alum was produced using the method in this experiment, how many grams of hydrogen gas could theoretically have been produced
Acetic acid flowing at the rate of 20kg pe min. Product p is of combination leaves at rate of 100 kg per minute. Determine the composition of p?
For a given first order reaction, the rate constant is 0.00035 s-1. How many minutes will it take for a reactant concentration to drop to 13.7 % of its initial value
Carbonate buffers are important in regulating the pH of blood at 7.40. If the carbonic acid concentration in a sample of blood is 0.0012 M, determine the bicarbonate ion concentration required
Compute the activation energy for this reaction when The half-lives were found to be 161 min at 199 Celsius and 12.5 min at 230 celsius? The isomerization of methyl isocynide follows first order kinetics.
For a particular reaction, H = -30. kJ and S = -88 J/K. Assume that H and S do not vary with temperature
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