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Question: A chemical reaction takes place inside of a simple constant pressure calorimeter that contains 100g of water. The temperature changes from 25 degrees C to 29 degrees C. What is the enthalpy (ΔH) of the reaction? (use 4.184 J/g degrees C as the specific heat of water)
If the energy needed to raise the temperature of the water to 28.1 C is obtained from the combustion of methane (CH4), what volume of methane, measured at STP must be burned
Determine the pH of a buffer prepared by mixing 0.675 moles of HC2H3O2 and 0.575 moles of NaC2H3O2 in enough water to give 1.00 liter of solution.
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter.
Calculate the number of moles of carbon dioxide in the final equilibrium system obtained by initially adding 1.00 mol of H2, 2.00 mol of CO2, 0.750 mol of H2O, and 1.00 mol of CO to a 5.00 L reactor at 990ºC.
Methane can be decomposed into two simpler substances, hydrogen and carbon. Therefore, methane
how many moles of co(nh2)2 are present in 150 g of water, if the freezing point of the solution is -4.02 degrees c?
A solution is prepared by mixing 5.00 g of compound Z (molar mass 15.00 g/mol) in 100.0 ml of water. The density of the solution is 1.09 g/ml. Calculate the molarity of the solution.
Solid aluminum can be separated from molten AlCl3 by reduction. How many grams of Al(s) would be obtained by passing a current of 14.1 A through molten AlCl3(s) for 2.77 hr.
Which of the following molecules or ions will have a lewis structure most like that of phosphorous trichlorid,
A buffer solution is prepared by dissolving 1.50g each of benzioc acid C6H5CO2H and sodium benzoate NaC6H5CO2 in 150.0mL of solution.
the only difference between succinate and fumarate is the geometry around their double bonds, one contains a cis double bond,
4Au + 8KCN + O2 + 2 H2O --> 4 KAu(CN)2 + 4 KOH what is the minimum amount of KCN (in g) needed to react with 15.6 g of gold?
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