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find out the ΔH0rxn for the given reaction as C3H4(g) + 2 H2(g) → C3H8(g)
given information: C3H4(g) + 4 O2(g) → 3 CO2(g) + 2 H2O(l) ΔH0rxn = -1937 kJ/mol rxn , 2 H2(g) + O2(g)→ 2 H2O(l) ΔH0rxn = -571.6 kJ/mol rxn , C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(l) ΔH0rxn = -2220 kJ/mol rxn
What monatomic ions do selenium (Z = 34) and cesium (Z = 55) form? (Type your answer using the format [Cu]+ for Cu+ and [Cu]2+ for Cu2+.)
Calculate the amount of heat energy (q) gained or lost when 180g of water is cooled from 65.0*C to 28.5*C. What is the sign of q for this calculation
If the initial pressure of the ether is 135 torr, what is its partial pressure after 1420 s? (Note, since the volume and temperature don't change, the pressure is directly related to number of moles and so the pressure can be treated similar to co..
The decomposition of potassium chlorate (KClO3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 20.7 mol of oxygen?
What concentration of bezoyl peroxide (kd=1.45 x 10^6 L/mol at 60 C) would be needed to polymerize a 1M solution of styrene to a molecular weight of 125,000?
Consider the reaction: 2N2O(g) O2(g) + 2N2(g). Which of the following will cause a shift in the equilibrium to the right? 1. Add more N2O 2. Remove O2 3. Remove N2
How many grams of steam at 105 degree celcius must be mixed with 25g of ice at -15 degree celcius in an adiabatic calorimeter with a heat capacity of zero in order to produce a final mixture
The standard enthalpies of formation of SO3(g), S(g) and O(g) are -359.7, +278.8 and +249.0 kJ mol-1, respectively. Use these data to calculate the average bond energy (in kJ mol-1) of the S=O double bond.
A form of the polypetide hormone angiotensin II has the amino acid composition ( ASP, ARG, ILE, MET, PHE, PRO, TYR, VAL). The following observations are made
What is the wavelength of the photons emitted by hydrogen atoms when they undergo n=4 to n=2 transitions in nm?
What is the mass percent of ethylene glycol (C2H6O2) in a solution of ethylene glycol in water that has a freezing point of -15C? (Kf for water is 1.858C/m.)
A student in lab has 3.00 g of pure N2 in 0.541 g pure H2. The reaction happens following this equation: N2(g) + 3H2(g) → 2NH3(g) How many grams of NH3 would be produced?
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