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Diffrentiate between hydrocarbon and isotopes and give the general formulas of alkanes,alkenes and alkynes
Question- Find the initial concentration of the weak acid or base in an aqueous solution of pyridine (C5H5N) with a pH of 8.81. Kb=1.80x10^-9. Answer in units of mol/L.
Mixtures of diastereomeric 1,3-dimethylcyclopentanes are formed on catalytic hydrogenation of all but one of the following. Which compound gives only a single stereoisomer of 1,3-methylcyclopentane
1. What happens to the value of the equilibrium constant for a reaction if the reaction equation is reversed? Multiplied by a constant?2. What is the effect of a change in volume on a chemical reaction (that includes gaseous reactants or products) in..
Calculate the Pickering series wavelength associated with the excited state ni = 9.What region of the electromagnetic spectrum does this transition fall in?
For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt.
Analysis of a sample of a gaseous compound shows that it contains 85.6% C and 14.4% H by mass. At standard conditions (STP), 120.4 mL of the compound weighs 0.151 g. What is the molecular formula of the compound
How much energy is required to vaporize 48.7 g of dichloromethane (CH2Cl2) at its boiling point, if its Hvap is 31.6 kJ/mol
a 16 g hypodermic needle has a nominal inner wall diameter of 1.65 mm and a 30 g hypodermic needle has a nominal inner
A 1 g sample of C8H16O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 39.28 kJ of energy. What is the enthalpy of formation of C8H16O?
The ability to sense odor is not the only chemoreceptor response in the human body.
Draw the structure of the unbranched isomer of C5H11Br that is most reactive in an SN2 reaction.
a mixture of caco3 and cao weighing 0.630 g was heated to produce gaseous co2. after heating the remaining solid
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