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Food additives, what they are, functions etc? Pick five additives and list common foods they are found in, and discuss whether they are linked to cause food allergies.
A solution of 5.0 g/L of HY has the same pH as one containing 10.0 g/L of HZ. Which is the stronger acid. Please explain.
1. The entropy of a substance increases when converted from a liquid to a solid 2. The entropy of a substance decreases as its temperature increases 3.All substances have positive entropy values at temperatures above 0 k a) 1 only b) 2 only c) 3 o..
In the following amino acid sequences, what amino acids will interact if the peptide forms an alpha-helix? Do you expect these structures to be stable. Why or why not
water is a uniqu material in that the density of the solid is lower than the density of the liquid which is why ice
how many moles of N atoms are there in .882 moles of (NH2)2CO?
A sound wave has a frequency of 2000 Hz. What is the distance between crests or compressions of the wave? (Take the speed of sound to be 344 m/s.) Compute the wavelength of an X-ray with a frequency of 1018 Hz.
Gaseous oxygen is held in 2 separate containers at identical temperature and pressure. The volume of container A is 7.92 L and it contains 0.209 mol of the gas. The volume of container B is 2.45 L. How many moles of the gas are in container B
Balance the following reactions and identify the species that have been oxidized and the species that have been reduced
Imagine a silica microsphere half of which is coated with a thin gold coating and having a trimethylammoniumpropanethiol molecule anchored to the gold.
if 400 ml of a 0.100M acetic acid and 200 ml of 0.100m solution acetate are mixed, what is the pH?
at 25 degrees C a saturated solution of a metal hydroxide has a pH of 9. What is the value of the solubility-product constant (Ksp) of M(OH)2 at 25 degrees C?
the reduction of 9-fluorenone to 9-hydroxyfluorene by sodium borohydride. What is the limiting reagent in the following procedure?
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