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Q. How to evaluate mass number?
An isotope of an element is recognized by its mass number which is the sum of the number of protons and neutrons in the atom's nucleus.
Mass number = number of protons + number of neutrons
When texting the symbol for an isotope write the atomic number and mass number as shown in the following examples.
H atom with one proton and no electrons H atom with one proton and one neutron
Given that dH for the reaction is -92.2 kJ mol-1, which is larger, the total bond dissociation energy of the reactants or the total bond dissociation energy of the products?
Acetylene tetrachloride (Westron), CHCl 2 ·CHCl 2 It is as well called as sym. tetrachloroethane. It is made by the action of chlorine on acetylene in existence of a catalyst
Explain in words why hydroboration leads to anti-Markovnikov addition of hydrogen whereas most electrophilic addtions to alkenes result in Markovnikov addition.
When the value of azimuthal quantum number is 3, magnetic quantum number can have values: (1) + 1, 0, - 1 (2) + 2, + 1, 0, - 1, - 2 (3) - 3, - 2, - 1, - 0, + 1
Use of the Grignard solution to prepare 2,2,6-trimethyl-5-phenylheptan-3-one: Prepare a solution of your enone (5.64 g; 0.030 moles) in dry ether (30 mL) and add it to the dro
Methane - Members of Alkanes It is also termed as marsh gas. (i) Industrial method of preparation: Mathane gas is acquired on a large scale from natural gas by liquefactio
Functional Foods Traditionally, food products have been developed for taste, appearance and convenience for the consumer. With the increasing awareness of the role of diet in
what is surface chemistry?
Assume that we want to make buffer by dissolving in water some amount of the compound which we selected by the table as given below; After that adding either strong acid (f
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