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An automobile tire at 32.0 psi at 25.0 Celsius is driven on a trip. At the end of the trip the pressure is 35.0 psi. What is the temperature of the tire in degrees Celsius?
A. 27.3 CelsiusB. 57.0 CelsiusC. 52.0 CelsiusD. 22.8 CelsiusE. 60.0 Celsius
A specific steroid has max = 291 nm and molar absorptivity = 11,500. What is the concentration of the compound in a solution whose absorbance at 291 nm is A = 0.050 with a sample pathlength of 1.00 cm
What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires
Which of the following pairs of substances are miscible and which are not?
For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds. 1. (S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
When a carton of milk spoils, a chemical transformation has occurred. Explain what indicates that this is a chemical transformation and not a physical transformation.
Calculate the energy of a photon emitted an electron in a hydrogen atom undergoes a transition from n=3 to n=1
Calculate the molarity of a NaOH solution if 34.17 mL of the NaOH solution were required to titrate 0.6321 g of KHP. KHP (204.23 g/mole) is the shorthand (not the chemical formula) for the primary standard potassium hydrogen phthalate
Calculate the pH of the solution, taking into account the activity coefficients for H+ (yH+ = 0.933) and IO3- (yIO3- = 0.928). Assume yHIO3 = 1. (Hint: quadratic)
Use the data below from an electron impact mass spectrum of a pure compound to deduce its structure. DRAW your structure in the drawing window. Mass Spectrum M/z Relative intensity 73 1.0 72 25 57 8 43 100 29 17
compounds like are known as chlorofluorocarbons. these compounds were once widely used as refrigerants but are now
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved
A certain substance has a heat of vaporization of 39.17 Kj/mol. At what kelvin temperature will the vapor pressure be 6.50 times higher than it was at 325k?
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