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Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C7H16O: ? 1.93 (t, J = 6 Hz); ? 3.35 (s); ? 4.49 (t, J = 6 Hz); relative integral 1:6:1.
At 25C, the vapor pressure of diethyl ether is higher than the vapor pressure of its isomer n-butanol. Why?
Predict whether creatine kinase will operate in the direction of ATP synthesis or phosphocreatine synthesis at 25 degrees C given that:
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much? (show calculation..
what is the density of sample of ammonia gas if the pressure is 705mmHg and the temperature is 63.0 degrees C?
What is the molecular geometry of Cl2CO?
Assume that we are comparing the membrane fluidity of lipid bilayers. Rank the fluidity of the following bilayers in the order of increasing fluidity. Explain in each case the rationale behind your prediction
Calculate the approximate SO 2 mass emission in lb/day.
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2(s) dissolves in water at 25°C?
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
Calculate the difference in energy between the second and first levels and between the fourth and third level (i.e. find Delta E = En Upper - En Lower for n upper=2, n lower =1 and for n upper = 4, n lower =3)
From this data, calculate the temperature at which ice is in equilibrium with liquid water.
In the hydrogen atom, for which transition is the emission line observed at shorter wavelength, n=4 to n=2 or n=5 to n=1? Show the equation needed to figure this out. Consider the relative size of delta E to determine the relative wavelength.
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