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At room temperature (20^circ rm C), milk turns sour in about 63 hours. In a refrigerator at 3^circ rm C, milk can be stored three times as long before it sours. Estimate the activation energy of the reaction that causes the milk to sour.
determining the difference between vinylic & allylic hydrogens in a Cyclohexene, how many of each, what determines it?
A sugar-water mixture contains 45.8 g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?
If 2.44 moles of Helium gas has a pressure of 2.4 atm at 343 K, what volume must the gas occupy.
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
Isotopes Decay, Isotopes decay according to first order kinetics with a predictable half life
a main component of photochemical smog. Classify this reaction as a synthesis, decomposition, single-displacement, or double-displacement reaction.
If you make three serial 1:5 dilutions, using the solution above, what is the concentration of the final solution?
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
For each pair of compounds below, indicate the more reactive in the type of mechanism specified. Briefly state why. Explain the smallest molecular dipole moment
The reaction between hydrochloric acid and zinc metal produces hydrogen gas and zinc chloride. If 50g of each hydrochloric acid and zinc are mixed
The distance between layers in a crystal is 321 pm. X rays are diffracted from these layers at an angle of 45.6°. Assuming that n = 4, calculate the wavelength of the X rays in nm.
Calcutate the number of grams of drug to be wieghted for this solution
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