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Which of the following chemical shifts would correspond to an aldehyde proton signal in a 1H NMR spectrum?
What is the relationship between deltaG, Qp, and Kp for a reaction involving gases
We titrated a 0.1033 M NaOH solution into an unknown concentration of a weak acid (25.00 mL). It also says the unknown acid will have a concentration of about 0.1 M.
Calculate the amount of N2 gas released (in liters at 37oC and 1 atm) when the diver returns to the surface of the water, where the partial pressure of N2 is 0.80 atm.
calculate [OH-] and pH in a solution in which dihydrogen phosphate ion, H2PO4- is 0.335M and hydrogen phosphate ion, HPO4^(2-) is a)0.335M b)0.100M
A United Nations toxicologist studying the properties of mustard gas, S(CH2CH2Cl)2, a blistering agent used in warfare, prepares a mixture
Which of the following pairs would NOT interact to produce an attractive/favorable weak interaction within a proteins 3D structure at physiologic pH.
Consider a molecule having three energy levels as follows: State Energy (cm?1) degeneracy 1 0 1 2 500. 3 3 1500. 5 Imagine a collection of N molecules
dissolved in water to produce a 0.0172 M solution. The pH of the resulting solution is 2.34. Calculate the Ka for the acid.
Consider the reaction that occurs when a solution containing hydrochloric acid (HCl) is added to a solution containing the weak base methylamine (CH3NH2).
you have a buffer system made up of equimolar amount of carbonic acid,H2CO3, and sodium bicarbonate,NaHCO3. Write equations to show how this buffer behaves when (a) HCL is added and (b) NaOH is added.
If the following substance is dissolved in pure water, will the solution be acidic and Explain Ammonium sulfate-((NH4)2SO4)
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
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