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The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/T (in K) is linear and has a slope of -7445 K. Calculate the activation energy for the reaction.
The average distance between Mars and Earth is 1.3 x 10^8 miles. How long will it take a picture transmitted from the Viking space vehicle on Mars' surface to reach Earth
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 × 10-5]
Calculate q,w,delta U and Delta H for each segment and for the cycle in which the direction of each process is reversed. In the graph all it says is the P initial =16.6 bar and Vinitial=1.00L and P final=16.6 bar and V final =25L
What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol, and the resulting solution is analyzed
Enantiometrically pure retrosynthesis, There are many ways of making (R)3-ethyl-4-methylpent-1-yne. Explain what enantiomerically pure retrosynthesis is and show
water expands when it freezes. How much work is done by 100g of water expanding as it freezes at 0 degrees Celsius and pushes back the wall of a pipe that exerts 1070 atm of pressure?
Use this equation to calculate the wavelength of the photon emitted in units of nanometers for the following transitions.
What is the purpose of distilling two mixtures whose boiling points are very close.
Why pure oxygen is often administered to victims of CO poisoning explain using le chatelier's principle? Hb (CO) aq + O2 aq is HbO2 aq + CO aq
Suppose that you wished to prepare copper(II) carbonate by a precipitation reaction involving Cu2+ and CO3^2-. Select all of the pairs of reactants that could be used as solutes
how many kilograms does it take to sink a model barge with the following measurements in a calm pool; 300.00 cm * 25.00 cm * 68.00 cm with a mass of 850.0 grams
What mass of this substance must evaporate in order to freeze 230 of water initially at 24? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
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