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Question
A scene in a fantasy chemistry lab.
Faraday was measuring the concentration of different solutes in different solutions. But he forgot the exact formula for Molarity, Molality and Normality. He decides to ask his colleagues.
Davy: ''Molarity is the number of moles of solute dissolved in 1 litre of solvent.''
Boyle: ''Molality is the number of moles of solute dissolved in 1 kg of solvent.''
Cavendish: ''Normality is the number of equivalents of solute dissolved in 1 litre of solution.''
Who do you think Faraday should believe? You can choose more than one.
A scene in a fantasy chemistry lab.
Faraday was measuring the concentration of different solutes in different solutions. But he forgot the exact formula for Molarity, Molality and Normality. He decides to ask his colleagues.
Davy: ''Molarity is the number of moles of solute dissolved in 1 litre of solvent.''
Boyle: ''Molality is the number of moles of solute dissolved in 1 kg of solvent.''
Cavendish: ''Normality is the number of equivalents of solute dissolved in 1 litre of solution.''
Who do you think Faraday should believe? You can choose more than one.
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Solution
The correct option is C Cavendish
Let us look at the definitions first.
Molarity is the amount of solute present per 1 liter of solution.
Molality is the amount of solute present per 1 kg of solvent.
Normality is the number of equivalents present per 1 liter of solution.
Cross check with these and identify which one of our make-believe scientists went wrong!
Let us look at the definitions first.
Molarity is the amount of solute present per 1 liter of solution.
Molality is the amount of solute present per 1 kg of solvent.
Normality is the number of equivalents present per 1 liter of solution.
Cross check with these and identify which one of our make-believe scientists went wrong!
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