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Anhydride 2-methylhexanoic pentanoic structure
Define a nucleophile and nucleophilicity. How is the nucleophilicity different from the basicity? Explain with the help of an example
- what are the possible products formed when 2-methylbutan-2-ol is heated with concentrated H2SO4. why two products are possible Explain.
the reaction of diatomic fluorine gas with compound X yields a single product, compound Y. The mass percent composition of the product, compound Y is 61.7%F2 and 38.3%Cl. What is the probable empirical formula for product Y?
. A 0.01 M HCl solution is diluted with water hundred times. 1. The pH of the solution increases by 2. 2. The pOH of the solution increases by 2. 3. The hydronium ion concentration of the solution decreases from10─2 M to10─4 M. 4. The hydroxide ion concentration of the solution does not change.
We have an iodine solution (25cm3
). It is titrated with sodium thiosulfate (0.1 mol dm-3).
With this, around 17.6cm3
of iodine solution reacted. The concentration of iodine is
then found out to be ͚x͛ mol dm-3 and ͚y͛ g dm-3
.
Evaluate: (y – x)?
Use the following NMR- and mass-spectral data to identify the structures of two unknown compounds, A and B.
B: 1H NMR: δ = 1.00 (s, 9 H), 1.17 (s, 6 H), 1.28 (s, 2 H), and 1.42 (s, 2 H) ppm. Mass spectrum m/z (relative intensity) = 129(0.05), 114(3), 72(4), and 58(100).
Calculate the volume of a 0.750M H2SO4 solution containing 0.120 mol of solute.
Calculate the degree of ionisation and the ph of a 0.01M aqueous solution of formic acid at 298k. Given Ka(HCOOH) = 1.7×10^-4 at 298k.
Differentiate between conductance and conductivity of an electrolytic solution.
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