you are instructed to add enough triethylene glycol (TEG) to make the solution 0.6 M in...

you are instructed to add enough triethylene glycol (TEG) to make the solution 0.6 M in meso-stilbene dibromide. Suppose you 200 mg of meso-stilbene dibromide. What volume of TEG would be required?

Expert Solution

Molarity of a solution = Number of moles of the solute present in 1 liter of the solution

= Number of moles of the solute / Volume of solution in liter

Molarity of a solution = Number of moles of the solute / Volume of solution in liter

OR

Volume of solution in liter = Number of moles of the solute / Molarity of the solution

Molarity of the solution = 0.6 M

CALCULATION OF NUMBER OF MOLES OF SOLUTE ,MESO- STILBENE DIBROMIDE

Mass of meso-stilbene dibromide = 200 mg = 0.200 g

Number of moles of meso-stilbene dibromide = Mass of meso-stilbene dibromide in gram / Molar mass

= 0.200 g / 339.8 g/mol = 0.00059 mol

Volume of solution in liter = Number of moles of the solute / Molarity of a solution

= ( 0.00059 mol / 0.6 M ) = 0.00098 L = 0.98 ml

0.98 ml of TEG would be required

queen_honey_blossom answered 6 days ago

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