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Q. Determine the Number of neutrons? Isotopes of an element can as well be specified by writing the mass number of the isotope following a hyphen after the name of the element.
The uncertainty in the position of a moving bullet of mass 10 gm is 10 -5 m . Calculate the uncertainty in its velocity: (1) 5.2 x 10 -28 / sec (
Discuss the effect of substituents on the acidity of phenolic group?
Can we vary the pressure while phases remain in equilibrium? Consider a system containing only NH 4 Cl(s), NH 3 (g), and HCl(g). Assume that the equilibrium NH 4 Cl(s) ↔ NH
advantages and dis advantages?
Why magnesium does not impart any colour to Bunsen flame while calcium does
Calculate the ideal rM/rX ratio for cation-anion and anion-anion contacts of an octahedral arrangement of anions around a cation as show in one plane in the figure below.
o.5oog of a sample which contains copper is analyzed iodometrically. Copper(II) is reduced to copper(I) by the iodide. What is the percent copper in the sample if 20.00cm3 of 0.1 m
chemical & physical properties of p block elements
ClCH 2 CH 2 CH 2 COPh + Methanoic acid ----------------> CH2-(CH2)-CH2-CO-C 6 H 6
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