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Which expression represents the percent by mass of nitrogen in NH4NO3? A) 14 g N/80 g NH NO 100% B) 28 g N/80 g NH NO 100% C) 80 g NH NO /14 g N 100% D) 80 g NH NO /28 g N 100%
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
write the mathematical expression for the equilibrium constant, Keq, as a function of the concentrations of the products and reactants for this reaction
An alkane with a molecular formula of c18h18 reacts with chlorine in the presence of light and heat to give a single monochloride c8h17cl. What is the most resonalble structure for the starting alkane? and why?
Ammonium Hydrogen sulfide decomposes on heating, NH4HS(s) NH3 (g)+H2S(g). If Kp for this reaction is .11 at 25 degrees celcius (where partial pressures are measured in atmospheres), what is the total pressure in the flask at equilibrium
Phenylephrine is a nasal decongestant and is the active ingredient in Sudafed, which contains phenylephrine hydrochloride (PEHCL). The conjugate acid (PEH+)
Draw a structural representation to describe the H-bonding responsible for the high boiling point of ethylamine and the structural representation of the H-bonding present when ethylamine dissolves in water.
ketones react with dimethylsulfonium methylide to yield epoxides by a mechanism that involves (1) an initial nucleophilic addition followed by (2) an intramolecular Sn2 substituition, Show the mechanism.
When ethane C2H6 rea cts with chlorine Cl2 the main product is C2H5Cl but other products containing Cl such as C2H4Cl2 are also obtained in small quantities.
Draw the structure of camphor and show which C-C bond must be broken to form the unwanted by-product
Determine whether each of the phrases or examples describes a thioester, reduced cofactor, or phosphorylated compound:
What is the pH at the equivalence point of the titration and at the half equivalence point
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
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