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The heat capacity of a calorimeter is found to be 5.68 kJ°C-1. While a1.652-g sample of glucose, C6H12O6, is burned in the calorimeter, the temperature of the calorimeter increases from24.56°C to 29.10°C. Compute the ΔH for the following reaction:
C6H12O6(s) +6O2(g) → 6CO2(g) +6H2O(g)
What is the molarity of a potassium triiodide solution, KI3(aq), if 30.00 mL of the solution is required to completely react with 25.00 mL of a 0.500 M thiosulfate solution, K2S2O3(aq)
Consider a reaction A+B=2C having a equilibrium constant Kc=5. If the initial concentrations are [A]=2M [B]=3M and [C]=0M, calculate the equilibrium concentration of [A],[B] and [C]
when a sample of kcn of 6.00-grams is dissolved in h2o water in a calorimeter that has a total heat capacity of 2.156
One of the major problems in peptide synthesis concerns racemization of the amino acids. If all the stereogenic centers at the a carbons of a polypeptide containing 10 different amino acids
Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
A direct current was passed through a solution containing alanine, Match the behavior with correct amino acid. The isoelectric point of histidine is 10.0.
How many mL of 0.220 M of NaOH are needed to completely hydrolyze 2.40 grams of propyl acetate.
Enough of a monoprotic acid is dissolved in water to produce a 0.0137 M solution. The pH of the resulting solution is 6.48. Calculate the Ka for the acid.
An experiment shows that a 250mL gas sample has a mass of 0.434g at a pressure of 744mm Hg and a temperature of 27C. What is the molar mass of the gas?
The vapor pressure of pure methyl alcohol at 19 degrees celcius is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal.
Potassium hydrogen phthalate (KHP) is used as a primary standard acid to accurately find out the molarity of a NaOH solution via a titration. The formula of KHP is KHC8H4O4 and has a molar mass of 204.23 g/mol.
The molecular formula for a compound is CX4. If 2.819 g of this compound contains 0.102 g of carbon, what is the atomic weight of X
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