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The heat capacity of a bomb calorimeter is found to be 5.68 kJ/oC. When a 1.652 g sample of glucose is burned in the calorimeter, the temperature of the calorimeter increases from 24.56 oC to 29.10 oC. Calculate the heat of combustion of glucose.
statements is true concerning the applicability of the E1, E2, SN1, and SN2 mechanisms to reactions
1500 g of frozen water at 0 degrees celsius and the temperature of the water at the end was 32 degrees celcius. how many calories of heat energy were absorbed.
In a second experiment, I(electric current) broke down a sample of H 2 O into 1.45 grams of hydrogen and 11.51 grams oxygen. Are these results reliable with the law of exact extent?
If a mixture of 41.25 g of aluminum and 58.83 g of oxygen reacts, what mass of aluminum oxide can be formed?
A gaseous mixture of and contains 37.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 785 ?
Solid ammonium nitrate (NH4NO3) and solid calcium chloride were placed in water and the mixture was stirred. What is the precipitate?
What is the concentration of g salt per 100 g water of a saturated solution in which 3.82 g of salt are dissolved in 9.54 g of water?
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
A 1.23 mol sample of KOH is dissolved in 425 ml water. find the molarity of the solution
A solution is prepared by mixing 75.0 mL of 0.030 M BaCl2 and 250. mL of 0.040 M K2SO4. What are the concentrations of barium and sulfate ions in this solution? Assume only SO42- ions (no HSO4-) are present.
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
An aqueous solution of etanol, C2H5OH is 19% ethanol by mass and has density of 0.9700gml. Calculate the molality, molarity of the ethanol solution.
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