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A certain substance, intially present at 0.500 M, decomposes by second-order kinetics with a rate constant of 4.00 x 10-1 L/mol min. Calculate the time (in minutes) required for the system to reach a concentration of 0.370 M.
Write the balance equation and predict the moles of ammonia that can be made using usng 22.4g of nitrogen and an unlimited amount of hydrogen
The one on the left is filled with 1 L of water at 20 C with a coefficient of viscosity of 1 cP. How long will it take for the beaker on the left to have 60% of its original level.
What is a chemically reasonable reaction that is stereospecific but not stereoselective
What is the percent yield if 5g of anthracene-9-carbaldehyde (MW= 206.24) is used to make 4.8g of 9-strylanthracene
What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2 - 0.490M NaC2H3O2 ? For MnS, Kspa=3x10^7
Calculate the molarity of a 5.72 m aqueous sucrose (C12H22O11) solution with a density of 1.50 g/mL.
determine the mass of aluminum acetate that can be made if 125 grams of acetic acid and 275 grams of aluminum hydroxide
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.23 M arsenic acid solution.
calculate the poh and ph at 298k of solutions having the following ion concentrations.oh 1.3 times 10 to the negative
A biochemist wants to utilize the following oligopeptide for biochemical assays. Estimate the number of charges on this peptide at different pH conditions by considering the charge states of amino acid residues at pH 2, pH 7.4 and pH 10.
The most important commercial process for generating hydrogen gas is the water-gas shift reaction: CH4(g) + H2O(g) ? CO(g) + 3H2(g) a)Use tabulated thermodynamic data to find ?G° for this reaction at the standard temperature of 25°C.
Using standard reduction potentials, calculate the delta G for the oxidation of ethanol using NAD+ as the oxidizing agent.
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