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Which of the following is isoelectronic with carbon atom: (1) Na + (2) Al +3 (3) O 2- (4)N + Ans: N +
You make up 0.100 L of a buffer having 1.00 M acetic acid and 1.10 M sodium acetate. The Ka of acetic acid is 1.8 x 10-4. (a) Determine the pH of this buffer.
Q. What is gamma radiation? The third kind of radiation is gamma radiation (g-radiation) which is high-energy electromagnetic radiation. Gamma radiation is typically emitted
Q. Explain heat according to kinetic theory of matter? Ans. On an atomic level the definitions of heat and temperature becomes more precise. According to the kinetic theory of
Q. General Characteristics of the f-block? You know that the 14 elements from cerium (Z = 58) to lutetium (Z = 71), which follow lanthanum (Z = 57) in the periodic table, are k
what is nobel gasses
The hybradization state of the Fe among [Fe(CN)6]3-,[Fe(CO)5] and [Fe(H2O)6]2+ is Ans) D2SP3,DSP3,SP3D2
give one chemical test to distinguish the following pairs of compound ethyl nitrile and nitroetane;benzamide and p-aminobenzonic acid
Bohr's model can explain : (1) The spectrum of hydrogen atom only (2) Spectrum of atom or ion containing one electron only (3) The spectrum of hydrogen molecule (4
Explain the mixtures and compounds Mixture Compound 1. Mixtures are made from 2 or more substances which are not chemically co
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