Mole Mole Stoichiometry Practice Worksheet Answers We define a mole as the number equal to Avogadro s number This is just like you say dozen is equivalent to 12 a score is 20 and a century is 100 In other words a mole is a unit that we use
Ans The molar quantity of Ar is available and should be used for deriving the corresponding mass in terms of grams Note that the amount of Ar is mentioned less than 1 mole hence the mass One mole of any substance atom molecule etc is equal to its atomic mass or molecular mass expressed in grams The number of particles present in one mole of any substance atom or
Mole Mole Stoichiometry Practice Worksheet Answers
Mole Mole Stoichiometry Practice Worksheet Answers
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Define mole fraction A solution of sucrose in water is labelled as 20 w w What would be the mole fraction of each component in the solution The vapour pressure of a pure liquid at 25 176 C is 100 mm Hg Calculate the relative lowering vapour pressure if the mole fraction of solvent in solution is 0 8 p 186 PS Xsolute 100 15 4802 Loo
Hence if P A is the vapor pressure of the solvent x A is its mole fraction and P A 0 is the vapor pressure of the pure solvent then by Raoult s law the relation will come out to be P A x A P i Mole fraction It is the ratio of the number of moles of a particular component to the total number of moles of all the components in the mixture It is denoted by symbol
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In this chapter laws of chemical combination Dalton s atomic theory mole concept empirical and molecular formula stoichiometry and its calculations are discussed Download NCERT How many moles of electrons weight one kilogram Mass of electron 9 1 10 31 kg avogadro number 6 023 10 23
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