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A calorimeter with a heat capacity of 4.61 kJ/K contains 18,050 g of freon-12. Benzoic acid is combusted in the calorimeter and liberates 26,400 J of heat energy causing the temperature to rise 3°C. Calculate the specific heat of freon-12 in J/g°C.
A. 0.7B. 0.2C. 2D. 0.4E. 0.89
A tank initially at a pressure of 6.70 atm contains 20.0 moles of oxygen gas at 25.0 degrees celsius. Its temperature is then increased to 45.0 degrees celsius
what plot would you construct to determine the rate constant k for this reaction. C) what would be the half-life for this reaction. will it depend on the initial concentration of reactant
The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid
How many kilojoules a) are required to raise the temperature of 33.4 g CH3CH2OH(l) from 19.6 to 49.8 C b) must be removed from a 325 g sample of CH3(CH2)6CH3(l) to lower the samples temperature from 82.4 to 31.6
An aqueous solution contains 0.96 g/L of an organic detergent. The osmotic pressure of this solution is 62.2 torr, at 25°C. What is the molar mass (in g/mol) of this detergent
The air in a laboratory was measured with a barometer to be 7.40 x 10^2 mm Hg. What is the laboratory air pressure in atm?
What is the solubility of lead fluoride in a solution of 0.050 M of sodium fluoride?
a 2.50-g sample of a large biomolecule was dissolved in 37.0 g of carbon tetrachloride. the boiling point of this
describe the nature and characteristics of pcbs. why are they of importance to an ehamps or fs professional who
What pressure would have been calculated on the basis of the ideal gas behavior and on the basis of the van der Waals equation if, for ammonia, a=4.25 bar L^2 mol^-1 and b=0.0374 L mol^-1
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
what are possible sources of error that might lead to an erroneous determination of the concentration of the acetic
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