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The biological process of nitrification to remove NH4+ is a first order process witha half life of 7.00 hr in the summer (25.0 C). The activation energy for the reaction is 48.1kj/mol. What is the half-life (in hr) in the winter (10.0 C)?
Estimate the equilibrium constant for the weak base C6H5CH2NH2, if a 4.53×10-1 M aqueous solution of C6H5CH2NH2 has a pOH 4.84 (make an exact calculation assuming that initial concentration
What is the minimum mass of sulfur dioxide necessary to produce 200. grams of sulfuric acid in the reaction?
Rank these elements according to first ionization energy (highest to lowest) : Ne, F, O, N, C, B, Be, Li. HINT: There is a general trend for ionization energy within a period of the periodic table
How many different types (sets) of hydrogens are there in 2,2-dimethylpentane
Given a pure preparation of these algae, and the required supplies and equipment, devise and outline an empirical procedure for purifying Enzyme X.
A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.
A laboratory method of preparing oxygen gas involves decomposition of solid potassium chlorate. The products of the reaction are solid potassium chloride and oxygen gas.
What is the concentration of the solution prepared by adding enough water to 4.00 mL of 3.25 M NaOH to make 20.00 mL total?
How much 0.500M Au(no3)3 solution would you need to prepare to accomplish this? C. What is the mass of gold transferred to the medallion?
a sample of argon gas is at a pressure of 1.24 multiplied by 10^4kpa and a temperature of 24 degrees celcius in a rigid 25-L tank. how many moles of argon does the tank contain?
If 110 {rm mg} of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 P.M.
Explain Solid State Chemistry, 1) Write the balanced chemical equation for Fe2O3+2Al?2Fe+Al2O3 using the lowest possible whole number coefficients.
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