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What is the SI unit of amount of a substance ?

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How many particles are present in 1 mole of a substance ?

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Calculate the molecular mass of the following in u. a. NH3 b. CH3 COOH c. C2 H5 OH

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How many grams does an atom of hydrogen weigh ?

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Point out the difference between 12 g of carbon and 12 u of carbon

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A. State and explain Avogadro's law.

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1. Choose the most correct option A sample of pure water, whatever the source always contains

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Formation of real image using a biconvex lens is shown below If the whole set up is immersed in water without disturbing the object and the

asked Apr 19, 2021 in Physics by Doubtly (98.9k points)

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A load of mass M kg is suspended from a steel wire of length 2m and radius 1.0mm in Searle's apparatus

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The image of an object, formed by a plano-convex lens at a distance of 8m behind the lens, is real and is one third the size of the object.

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An electromagnetic wave can be produced, when charge is Amoving with a constant velocity

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A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T.

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The radius in kilometre to which the present radius of earth (R = 6400 km) to be compressed so that the escape velocity is increased 10 times is ____________