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Q. Define the Normality of solutions?
Ans. Sometime normality is used to measure concentration. Normality (abbreviated N) is the number of gram-equivalent masses of solute in 1 liter of solution. A gram-equivalent mass is the mass of acid (or base) which can give one mole of hydrogen (or hydroxide) ions.
The table below gives intrinsic viscosity values explained by viscometry and weight- average molar mass values explained under the similar conditions by static light scattering
explanation
Which one of the following explains light both as a stream of particles and as wave motion: (1) Diffraction (2) γ= h/p (3) Interference (4) Photoelectric effect
The energy of an electron in orbit of hydrogen atom is : (1) 13.6/n 4 x eV (2) 13.6/n 3 xeV (3) 13.6/n 2 xeV (4)13.6/nx eV Ans:
Taking a specific example show that AS total is a criterion for spontaneity of a change. Write the cell reactions which occur in lead storage battery (i) when the battery is
what is the defination of interstitial?
Number of electron does species have The H2 2- ion can be conceived to result from the combination of two hydride ions (H-). This species have four electrons; two occupy the b
what is conductors?
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