Determine the value of k at 850 k
When heated to a high temperature, cyclobutane, C4H8, decomposes to ethylene.
C4H8(g) 2 C2H4(g)
The activation energy, Ea, for this reaction is 260 kJ/mol. At 800 K, the rate constant k = 0.0315 s-1. Determine the value of k at 850 K.
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Determine the number of chloride ions in 11.73 g of magnesium chloride.
Hydrazine derivatives are commonly used in rocket fuels. Combustion of N2H4 produces N2(g) and H2O(g). When 1.00 g of N2H4 is burned in a bomb, DT = 3.51 oC. If C = 5.51 kJoC-1, what is the quantity of heat evolved? What is DH of this reaction?
Lucy has $900,000 to invest and she wants a portfolio beta of 1.2. The S&P 500 has an expected return of 18% and the standard deviation is 30%. The risk-free return is 5%. She plans to put her money in the S&P 500 and T-bills. What is the
A sculptor has prepared a mold for casting a bronze figure. The figure has a volume of 245 mL. If bronze has a density of 7.8 rm {g/mL}, how many ounces of bronze are needed in the preparation of the bronze figure?
Lucite is 71.4% carbon, 9.59% hydrogen, and 19.01% oxygen. What is the empirical formula for Lucite?
A first order reaction has k = 0.440 min-1 and the initial concentration of reactant is 0.840 M. What is the concentration of the reactant after 1.00 minute?
If 7.00 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
Small samples of oxygen gas needed in the laboratory can be generated by any number of simple chemical reactions, such as 2KClO3(s) 2 KCl(s) + 3 O2(g) According to this balanced chemical equation, how many moles of oxygen gas are produced from the
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