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If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum?Solution) There is a formula for this i.e [ (n2-n1+1)(n2-n1) / 2 ] So if acc. to your question n1=1 and n2=4 then the answer is 6.
Q. What do you mean by Rounding off numbers? Rounding off numbers while you report a calculation your answer should have no more significant figures than the piece of data yo
Mesh size of silica gel for prep tlc
Approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in Figure 1. SAE 10W-30 oil at 20°C fills the gap. Assume a linear velocity profile.
Explain detergents? Give their scheme classification. Why are the detergents preferred over soaps?
balance the equation
The correct ground state electronic configuration of chromium atom is: (1) [Ar] 3d 5 4s 1 (2)[Ar]3d 4 4s 2 (3) [AR]3d 6 4s 0 (4
Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemica
An aqueous solution has a hydroxyl concentration of 1.75 x 10^-7mol/L. Find the concentration of hydrogen ions in this solution.
Coordination Position Isomerism: If in a multinuclear complex the distribution of ligands around the metal centres changes it will result in a different isomer. Such an isomerism
Q. Show the Units of Measurement? You most likely know your height in feet and inches. The majority people outside the United States however measure height in meters and centim
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