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A 250 g sample of sucrose C12H22O11(s) was burned in a 21.00 kg iron calorimeter immersed in 1.450 Kg of water. The initial temperature of the system was 24.32 degrees Celsius. Determine the heat of combustion of sucrose under the conditions present inside the calorimeter (CH2O = 4.184 kJ/(kg degrees C) cFe = 0.452 kJ/(kg degrees C)).
3.38 grams of nitrogen gas are mixed with excess oxygen gas. The reaction yields 6.63 grams of nitrogen monoxide. nitrogen (g) + oxygen (g) -> nitrogen monoxide (g)
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
Give three differences that might be noted between the titration curve for hydrochloric acid and a titration curve for a weak unknown acid?
A particular reactant decomposes with a half-life of 115 s when its initial concentration is 0.353 M. The same reactant decomposes with a half-life of 225 s when its initial concentration is 0.180 M.
In a closed 1.00 L flask, 2.60 atm of CO reacts with 5.80 atm of O2 according to the equation below. Assuming that the temperature remains constant, what is the final pressure in the flask?
reacted with 0.0040 mol NaOH (very strong base) and then brought up to a volume of 1.0 liter with water. What is the pH of the resulting solution?
The mixture is 20% benzene by volume. A densitometer gives the density of the mixed stream to be 1.1 g/mL. What are the mass fractions of all three species?
One of the product formed when 5-hexen-1-ol is treated with a catalytic amount of sulfuric acid is a cyclic ether
What is the change in the volume of the balloon as it ascends to 7000ft?
A mixture of butene and butane burn in the air to give CO2 and H2O.suppose u burn 2.86g of the mixture and obtain 8.80g of CO2 and 4.14g of H2O.
A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?
What is the osmotic pressure of a solution made from dissolving 85.0g of glucose in 800ml of water at 19.0 C.
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