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The combustion of an organic compound releases 35.6 kJ of energy and causes the temperature of a constant volume calorimeter to increase by 4.76 °C . What is the heat capacity of the calorimeter?Equations needed: C = 75.291 J/mol•K for H2O q = CcalΔT
Determine the new pressure of the gas and express your answer in Pa
A 5.0×101 sample of water absorbs 355 of heat.If the water was initially at 25.9, what is its final temperature.
Identify the steric number, shape, hybridization about the central atom and molecular polarity of sulphuryl chloride, SO2Cl2.
9.780 grams of gaseous mixture contains ethane ,C2H6 and propane ,C3H8. it needs 1.120mol of oxygen when complete combustion to form CO2 and H2O. Compute the mass percent of C2H6 in the original mixture.
Determine the amount of energy involved in calories given off when 85 grams of H2O cools from 45 degrees Celsius to 25 degrees Celsius?
Determine how many moles of each Na+ and Cl- are in 1.00L of the saline solution?
An open-end manometer containing mercury is connected to a container of gas. The mercury in the arm attached to the gas is 13.6cm higher than the one open to the atmosphere.
Ethylene glycol is used as automobile antifreeze. 6.38g og this compound contains 2.47g of carbon and 0.620g of hydrogen. The rest is oxygen. The molar mass is 62.0g/mole.
Equilibrium between the composition of Hydrogen sulphide in the gaseous and liquid phases can be represented as Yn=48.3Xn.
You have a sample that consists of 8.2 (+ or -)o.1mL of aqueous 239Pu solution. You measure two 10mL aliquots by liquid scintillation counting and get 3211.4 cpm and 3315.2 cpm, respectively.
Determine how many grams of sodium chloride are required to prepare 250. mL of this solution. (if given the density of the saline solution is 1.0 g/mL)?
NaHCO3 (aq) + H3C6H5O7 (aq) 3CO2 (g) + 3H2O (l) + Na3C6H5O7 (aq) If 1.10 g sodium bicarbonate and 1.10 g citric acid are allowed to react, how many grams of carbon dioxide will form.
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