Calculate the enthalpy of combustion
The enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
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How many grams of magnesium chloride, MgCl2, would be required to prepare a 0.2019 m MgCl2 solution by combining this compound with 0.2050 L of water (assume a density of 1.00 g/mL)?
Determine the mass of AgNO3 (MW = 170g/mol) required to dissolve in 400 mL solution in order to prepare a solution which is .14 M AgNO3.
A solution initially 0.100 M in HOCl and 0.300 M in NaOCl. What is the pH in 0.030 mol of solid NaOH is added to 1.00 L of this solution? Assume no volume channge.
What is the final temperature of the solution (in )? Assume that the specific heats of both pure and the solution are the same, 4.18 .
A solution of 11.3g of electrolyte in .105 kg of water freezes at -2.36 degree centigrate at standard temperature. what is the molecular weight , in gram per mole, of this compound. kf =1.86
Calculate the mass of nitrogen dissolved at room temperature in an 94.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
How many charges will it need to travel from Boston, Massachusetts to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?
How many of joules of heat are needed to raise the temperature of 10.0g of aluminum from 22 degrees C, if the specific heat of aluminum is 0.90 j/g degrees c.
Given the following equation, what volume of hydrogen gas, H2, is released at STP conditions by the action of 8.18 g of Zinc;
Calculate the pH of a buffer solution obtained by mixing 400.0 mL of 0.200 M acetic acid solution and 100.0 mL of a 0.300 M sodium hydroxide solution.(The pKa of Acitic Acid, CH3OOH is 4.74)
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