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An unknown hydrocarbon material is burned in a calorimeter with air. An Orsat analysis indicates that the (dry) exhaust gas is made up of only 17.5% CO2 and 82.5% N2, with no CO or O2 present. Determine
a. The fuel model (CnHm).
b. The composition of the fuel on a mass basis.
c. The percent theoretical air used.
d. The dew point temperature if the combustion products are at 0.101 MPa.
The procedure calls for cautions addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reac..
What kinetic energy must the electrons have in order to resolve a protein molecule that is 5.10 nm in diameter? Take the mass of an electron to be 9.11× 10-31 kg.
500.0 mL of 0.160M solution of H3PO4 is combined with a 300.0 mL of a 0.245M solution of Ba(OH)2. What is the maximum mass of solid Ba3(PO4)2 that can be collected
Two moles of ideal gas at atmosperic pressure 20 degree celcius is confined to a closed container of volume 1.5 liter. What is the pressure in the container if the temperature registers 167 degrees celcius
mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of the reactant in excess will remain after the reaction?
You dissolve a compound with a molecular mass of 284.63 in a 10-mL volumetric flask. You remove a 1.00-mL aliquot, place it in a 25-mL volumetric flask and dilute it to the mark. The absorbance of this diluted solution at 345 nm was 0.451 in a 1.0..
To reduce pollution when coal is burned, it is important to remove mercury and sulfur compounds from the effluent. Identify which, ifany, ofthe following redox reactions are spontaneous under standard conditions and therefore might be used for thi..
calculate number of moles of anhydrous compound recovered. c- calculate number of moles of water lost from the hydrated compound.d- what is the formula of the hydrate?
We most often express heat as kilocalories and kilojoules rather then calories and joules. When 1 pound of fat is burned in the body,9.4 kilocalories of energy is produced. Express that as a) calories b)kilojoules
what volume and mass of steam at 100 c and 760. torr would release the same amount of heat during condensation as 65.5
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
What is the ph change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.130 M with no change in volume
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