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If the water molecules in 1g of water were uniformly distributed on earth surface , how many such water molecules would there be in 1 cm^2 of earth?Solution) No. of molecules in 1g of water : (1/18)*6.023x10^23 = 3.34 * 10^22.Area of earth ( consider it a sphere ) = 4x3.14x6400*10^5 cmTherefore your answer = 6.023x10^23/(8.03x10^9) = 7.5x10^13
Originally, chewing gum was made from the latex sap of the sapodilla tree (native to Central America). This sap was known as chicle. Other natural gum bases may be used, such as je
Q. Definition of Avogadros Hypothesis? Ans. Equal volumes of different gases at the same temperature and pressure contain the same number of molecules. At a given temperatu
Natural rubber and its examples
Properties of Detergents - Oils and Fats Detergents are superior cleansing agents due to following properties. (i) These can be employed both in soft and hard waters as the
what are the chemical properties of solids???
An element have atomic weight 40 and it's electronic configuration is 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 . Then its atomic number and number of neutrons will be: (1) 18 and 22
What are the major poisnous gases released during burning of the plastic substances? Ans) It is high time that we start taking concrete steps in order to prevent pollution or else
Matrix modifier method: GFAAS is a much more sensitive as compared to flame AAS and requires a very small sample size. More so, it does not require any sample preparation; eve
WITH THE HELP OF A GRAPH, STATE THE DEVIATION OF MOLAR CONDUCTIVITY OF STRONG AGAINST WEEK ELECTROLYTE.
Filter pump Some skill is needed to construct the ordinary glass filter pump, but it is possible to contrive one from glass tubing and good corks. The action of the pump depend
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