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Physical Chemistry
how long did the time taken for propane and carbon monoxide?
Physical Chemistry
explain what accounts for the difference between ice[solid] and water[liquid at room temperature]
Physical Chemistry
(a) ice is a solid while water is a liquid at room temperature and pressure.Explain what account for difference between these two states .
Physical Chemistry
the formation of urea (NH4NOCNH4) from the Ammonium isocyanate (CH4N2O) have been prepared(NH4CNO------.>NH2CONH2).
at the begining 22.9 g from Ammonium isocyanate has been solved in water so 1.00 L (LITER) from the Solution prepared.
1) order of reaction?
2)rate constant (K)?
3)the mass of Ammonium isocyanate that has been remained after 300 minutes?
T/min 0 20 50 65 150
m(urea) 0 7 12.1 13.8 17.7
thank u
at the begining 22.9 g from Ammonium isocyanate has been solved in water so 1.00 L (LITER) from the Solution prepared.
1) order of reaction?
2)rate constant (K)?
3)the mass of Ammonium isocyanate that has been remained after 300 minutes?
T/min 0 20 50 65 150
m(urea) 0 7 12.1 13.8 17.7
thank u
Physical Chemistry
What must be done to determine the concentration of a non standard solution?
Titrate it with a primary standard
Titrate it with a non titrant
Titrate it with a secondary standard
Purify it and use it as a standard
Titrate it with a primary standard
Titrate it with a non titrant
Titrate it with a secondary standard
Purify it and use it as a standard
Physical Chemistry
3. Determine the specific heat of a substance that absorbs 125 J of heat, has a mass of 67.8 g and has a temperature change of 15.9 oC
Physical Chemistry
2. determine the temperature change of 500.6 g of water that absorbs 355 J of heat.
Physical Chemistry
. determine the mass of water that absorbs 1234 J of heat and undergoes a temperature change of 33.4oC.
Physical Chemistry
1) For the reaction N2O4(g)—2NO2(g) the value for Kp at 350K is 394kpa. Calculate the average relative molecular mass of the equilibrium mixture at 350K and a total pressure of 202.6Kpa.
Physical Chemistry
The stream from a gas well consists of 90 mol % methane, 5 mol% ethane, 3 mol% propane, and 2 mol% n-butane. The stream is flashed isothermally vaporised at 233 K and 70 bar. Use De Priester chart to estimate the L/F fraction and liquid and vapor compositions.
