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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 you used in your computation with the fewest number of significant figures. Therefore if you calculate the density of an object with a mass of 12.33 g in addition to a volume of 19.1 cm3 your answer must have only three significant figures. Though when you divide these quantities using your calculator it will show 0.6455497-lots more figures than you can report in your answer. You must round off the number to three significant figures or 0.646.
Some enzymes require other associated molecules to work. These molecules are known as enzyme cofactors and they can be, for example, organic ions, like mineral salts, or organic mo
The Basicity is 3 as there are 3 H atoms that can be displaced from compound.
what is eld
Physical properties of Cycloalkane (i) In Cycloalkane First two members are gases, next three members are liquids and higher ones are solids. (ii) Cycloalkane is not solubl
The frequency of strong yellow light in the spectrum of sodium is 5.09•10*14s calculated the wavelength of light
what is amine
Safety in Preparation of Preparation of trimethyl: 1 Use a round-bottomed flask equipped with a Claisen head (lagged with glass-wool), Quickfit thermometer (very expensive!)
raoult''s law and its three forms
Saytzeff rule
Caesiurn chloride crystallises as a body centred cubic lattice and has a density of 4.0 g cm -3 . Calculate the length of the edge of the unit cell of caesium chloride crystal.
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