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The heat capacity of a bomb calorimeter is 87.5kJ/K . If 67.2g of methane is combusted under such reaction conditions, what will be the increase in temperature of the calorimeter? Delta E combustion for CH4(g) is -885.4kj/mol.
Construct the lewis structure model for the ionic compound potassium chloride using the following steps.
A suspension of vanillin (2.5838 g, 16.98 mmol) and sodium hydroxide (0.022 g, 22 mL, 1M) was coolied in an ice-water bath before adding sodium borohydride (0.41s g, 10.89 mmol) while swirling the mixture. After addition of the sodium borohydride ..
Consider the titration of 30mL of 0.030 M of NH3 with 0.030M HCl. Calculate the pH after the following volumes of titrant have been added
Calculate the amount of energy released by the freezing of 13.3 g of a liquid substance, given that the substance has a molar mass of 82.9 g/mol and a molar heat of fusion of 4.60 kj/mol.
Calculate the ionic strength of a solution containing 0.010 M calcium sulfate and 0.010 M sodium chloride. Show all work.
What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 238 nm? [Data: c = 3.00 x 108 m/s; h = 6.63 x 10-34 Js ]
Draw and name all dienes of molecular formula C5H8. When E and Z isomers are possible, draw and name each stereoisomer.
you dissolve 15.0g of sucrose C12H22O11 in a cup of water (225g) what is the freezing point of solution (kf of water is -1.86).
What is the percentage of (R)-phenylalanine present in this mixture? d. What is the percentage of (S)-phenylalanine present in this mixture?
consider the following energy diagram for an enzyme-catalyzed reaction. which step is probably the slowest? chose from the following answer.
You mix 55 mL of 1.00M silver nitrate with 25 mL of 0.81 M sodium chloride. What mass of silver chloride should you form?
Determine the molality and molarity of a solution made by dissolving 445 g of NaBr in 2600 ml of water ?
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