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(i) Calculate the totalnumberof electronpresentin onemoleof method (ii) Find(a ) thetotalnumberand ( b)the totalthat mass of neutron= 1.675 xx 10^(27)kg (iii) Find(a ) the totalnumberand ( b) the totalmass ofprotonsin 34of NH_(3) at STP Willthe answerchangeif thetemperatureand pressureare changed ? |
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Answer» Solution :(i) Electronof 1 moleculeof `CH_(4)`methane = (oneof C+fourof H ) = 6 + 4 =10electron 6.022 `XX 10^(23) = (6.022 xx 10^(23) xx 10)/( 1)` `=6.022xx 10^(24) `ELECTRON `//` mole (II) (a )weight1 MOLEOF `.^(14)C` =14 GM numberof atomcarbon = 14 `=(7xx 10^(4))/(14) xx 6.022xx 10^(23)` (iii)Molecular mass of`NH_(3) - 14 _ 3` 34 mg = 34`xx 10^(-3) gm NH_(3)` |
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