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When Styrene burns in Oxygen to form carbon dioxide and liquid water under standard-state conditions at 25 C, 1.082 x 104 kJ are released. Find the standard enthalpy of formation of styrene at 25 C.
(Given : ΔH°f [CO2(g)] = -393.5 kJ/mol, ΔH°f [H2O(1)] = -285.8 kJ/mol, ΔH°f [H2O(g)] = -241.8 kJ/mol)
C8H8(s) + 5 O2(g) → 8 CO2(g) + 4H2O(l)
explain Why this separation occur and which solvent will be on top - the temperature of twenty degree Celsius. When hexane is added with H 2 O, there is a separation
write a chemical equation for the oxidation of ethane gas to form water vapor and carbon dioxde gas. define this as the
Determine the pressure in Standard atmospheres,Torr and mm Hg units when A gauge on compressed gas cylinder reads 1500 psi ( pounds per square inch; 1 atm =14.7 psi).
A 2.0 L-reaction flask initially contains 0.04 mol CO, 0.23 mol H2, and 0.60 mol CH3OH (methanol). If this mixture is brought in contact with a zinc oxide-chromium(III) oxide catalyst, the equilibrium shown below is attained.
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
Calculate the theoretical yield of iron in the reaction of 254 g of iron (III) oxide with 25.0 g of carbon, according to the equation 2Fe2O3(s) + 3C(s)> 4Fe(s) +3CO2(g)
What the role of ethanol in cellular energy supply, the metabolism of ethanol (alcohol), the regulation of its metabolisbm and the disease
Based upon 3 SnF2 (ag) + 2 K3PO4 (aq)> Sn3(PO4)s (s) + 6 KF (aq), a 10.000 gram sample of toothpaste containing stannous fluoride gives a 0.145 gram precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
1. so2 reacts with h2s as followsnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp 2h2s so2 rarr 3s 2h2owhen
What's the total pressure generated by a mixture of gases if the pressure of oxygen is 465 mm Hg, the pressure of nitrogen is 1.1atm and the pressure of chlorine is 501 torr? Report your answer in torr. Report your answer to no decimal places.
Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with dilute NaOH, Na2SO4, and KCl produces no precipitation. Which of the following cations might the solution contains?
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
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