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State reacting showing how nylon can be synthesized thus that it will react with (a) basic dyes and (b) acidic dyes.
Draw structural formulas for all of the structural isomers of C4H10, C5H12 and C3H7Cl.
Succinic acid, an intermediate in the metabolism of food molecules, has molecular mass = 181.1 amu. When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000M NaOH solution was required to neutralize the acid.
What is the volume of a 2.3M NaOH solution required to titrate 23.5 mL of a 1.00 M H2SO4 solution? First write a balanced chemical equation
List and draw all types of noncovalent interactions (charge-charge electrostatic, hydrogen-bonding, hydrophobic reactions) that can occur between the side-chains of the following amino acids.
calculate the molarity of acetic acid in a vinegar sample knowing that 5.00 ml of vinegar requires 43.50ml of 0.105m
Hydrazine(N2H4) is a fuel used by some spacecraft. It is normally oxidized by N2O4 according to the following equation: N2H4(l)+N2O4(g)=2N2O(g)+2H2O(g)
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
What is the boiling point of water at an altitude where the ambient air pressure is 0.61 bar? The enthalpy of vaporization of water near its boiling point is 40.7 kJ/mol.
Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. A gas vessel is charged with a mixture of PCl3(g) and Cl2(g)
A chemistry student needs of 40 ml chloroform for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of chloroform is 1.48g x cm^-3 . Calculate the mass of chloroform the student should w..
The reaction A=B+ C is second order in A. when [A}0=0.100M, the reaction is 20% complete in 35 minutes. Calculate the value of the rate constant in ( L/min.mol)
The addition of bromine to ethene in the presence of high concentration of chloride ion in an inert solvent results in the formation of 1,2-dibromoethane and 1-bromo-2-chloroethane.
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