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Consider 1:1 stoichiometric polymerisation of 1,4-diaminobutane with sebacoyl chloride.
(a) Write down a balanced chemical equation for the polymerization
(b) Name the polymer formed by this polymerization.
(c) Calculate the extent of reaction required to produce this polymer with a number-average molar mass of 8000.
(d) What would happen if you included 1,1,4,4-tetraaminobutane in the polymerisation so that the stoichiometric ratio was 1:2:4 tetraaminobutane:diaminobutane:sebacoyl chloride?
A copper tube 1 inch in diameter and 2 feet long is filled with steel balls of 1 inch diameter. The space between the balls is filled with water. The specific gravity of steel 7.8.
Can I get a compound from crude extract of plant by NMR and GC-MS?
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What is rate of charge transfer
A sample of caco3 and mgco3 weighing 192 g is ignite to constant weight of 10 g. calculate sample composition.
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
Li + H20 ----> LiOH + H2....if I start with 3.4 mols of H2O , how many mols of H2 can I make?
what are the diferent types of indicators and describe them
Show that wavefunction ψ1(x) = (2/L) 1/2 sin(πx/L) of a particle in a box is an eigenfunction of the operator d 2 /dx 2 and also calculate the corresponding eigenvalue.
In the study of mechanisms of various chemical reactions, Deuterium and Tritium are used as tracers.
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