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Explain write a balanced redox reaction for the complete oxidation of ethene (H2C=CH2) to CO2 coupled to the reduction of sulfate to bisulfide. Note that the oxidation define of each carbon in ethene is -2.
A compound contains 10.13% C and 89.87% Cl (by mass). Determine both the empirical formula and the molecular formula of the compound given that the molar mass is 237 g/mol.
Calculate the concentration of the carbonate ion, CO3-, in a 0.010 M H2CO3 solution that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
Calculate the mole fraction of ethanol, C2H5OH, in a solution that contains 230. grams of C2H5OH and 312 grams of benzene, C6H6.
What is the correct positions of the methyl group and the isopropyl group in the most stable chair confirmation of cis-1-isopropyl-2-methylcyclhexane
Liquid benzene, C6H6, (density = 0.877 g/mL) can be used as a fuel. What is ?H in kJ for the combustion of 2.86 L of benzene producing CO2(g) and H2O. Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol.
Solid ammonium fluoride is slowly added to 125 mL of a magnesium sulfate solution until the concentration of fluoride ion is 0.0476 M. The maximum amount of magnesium ion remaining in solution is
Predict the sign of delta S for each of the following changes.
What is the osmotic pressure, in atm, of a solution formed by dissolving 14.1 g of CaBr2 in 0.670 L of water at 53.4 oC? (R = 0.0821 L-atm/mol-K; 0 oC = 273 K)
If an organic chemist nitrated chlorobenzene, would the ortho:para ratio be less than, equal to, or greater than the 38:62 ratio observed with the nitration of bromobenzene
How many grams of C6H14 are needed to heat 1.00 kg of water from 29.5 degrees celsius to 77.5 degrees celsius. Assume that all of the heat released during the combustion is used to heat the water.
Find out the end (final) value of n in a hydrogen atom transition, suppose the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz
calculate the area of the spill in cm squared and the diameter of the spill in cm. (Help: 32 oz = quart, 1 mL = 1 cm cubed; area of a circle A = pi x r squared)
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