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A certain amount of gas at 28.0 degrees C and at a pressure of .900 atm is contained in a glass vessel. suppose that the vessel can withstand a pressure of 2.05 atm. how high can you raise the temperature of the gas without bursting the vessel?
The enthalpy of combustion of benzoic acid (C6H5COOH) which is often used to calibrate calorimeters, is -3226.7 kJ/mol. When 3.4161 g of benzoic acid was burned in a calorimeter, the temperature increased from 20.84 to 25.67C.
A twofold increase in the initial concentration of A leads to a 1.41-fold increase in the initial rate. what is reaction order
At what temperature would a 1.80 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 degrees C/m. answer in degrees C
A researcher studying the nutritional value of a new candy places a 4.20-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.71 °C
How many moles of PbI2 are formed? What is the concentration of KNO3? What is the remaining concentration of the reactant that was in excess?
Considering the mixture of the two compounds and range of the melting points, the reason recrystallization was difficult was due to a broad melting point range.
Draw the structure of propanoic acid (propionic acid) with the approiate hydrogen bonded water molecules -- that is, put in the maximum number of water molecules that could H bond with propionic acid. Remember -- H bonds (hydrogen bonds) are indic..
The slope of an arrhenius plot between ln k and 1/t for a reaction is -0.66x10^4 K, and the y intercept is 11.25. what is the activation energy and the frequency factor of the reaction respectively?
acetic acid is a weak monoprotic acid. it is the active ingredient in vinegar. if the initial concentration of acetic
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 23.75 mL of 0.0502 M NaOH but overshoot the end point
Need to dissolve CaCl2 in water to make a mixture that is 28.0% calcium chloride by mass. If the total mass of the mixture is 884.7 g,
Calculate the work done (in joules) against a pressure of 1.0 atm at 25 o C. If 3 moles of H 2 react with 3 moles of Cl 2 to form HCl while
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