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Compute the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3.(→?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)
(a) 2 H2(g) +O2(g) → 2H2O(l)
(b) 2 CH3OH(l) + 3 O2(g)→ 2CO2(g) + 4 H2O(l)
Indicate for each carbon in the following molecules the hybridization, geometric shape, and bond angles: a) CH3CH3
What is the molar solubility of AgCl in 0.30 M NH3. Ksp for AgCl is 1.8 x 10^-10 and Kf for Ag(NH3)2+ is 1.7 x 10^7.
Suppose an ideal gas initially at 0.7bar and 1.3 L is compressed at constant temperature to a volume of 0.7 L, Explain what final pressure of the compressed gas
Explain A pressurized tank of helium gas initially at 7.2bar and 40 C is cooled until the pressure reaches 5bar. Explain what is the final temperature of the gas
what mass of zinc can be plated onto a metal sheet a process call galvanizing from an aqueous zinc sulfate solution
synthesize benzocaine from benzene. please explain in detail in only three steps how to achieve this reaction. list NMR, MS and IR peaks for each step.
Sodium has a density of 0.968g/cm3 and crystallizes with the body-centered cubic unit cell. Calculate the radius of a sodium atom in pm.
How much PV work is done, and what is the value of ΔE for the reaction of .50 mol of H2 with .25 mol of O2 at atmpospheric pressure if the volume change is -5.6L
How many grams of methane gas (CH4) are in a 15.8 liter sample at 1.2 atmospheres and 27°C? Show all work used to solve this problem.
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 ml of vinegar requires 43.50 ml of 0.105 m
Now consider the following set of reactions: Reaction A=2NO2 --- 2NO + O2, H=109 kJ/mol Reaction B=N2O4 --- 2NO + O2, H=172 kJ/mol The equations given in the problem introduction can be added together to give the following reaction
calculate the molarity and mole fraction of a 1.43 m solution of acetone ch3coch3 dissolved in ethanol c2h5oh. density
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