How many milliliters of an aqueous solution of 0.212 M copper(II) chloride is needed to obtain...

How many milliliters of an aqueous solution of 0.212 M copper(II) chloride is needed to obtain 6.74 grams of the salt?

Expert Solution

We know that Molarity , M = ( mass/molar mass) x ( 1000/Volume in mL)

Given Molarity,M = 0.212 M

Mass of CuCl₂ = 6.74 g

Molar mass of CuCl₂ = At.mass of Copper + ( 2xAt.mass of chlorine)

= 63.5+(2x35.5)

= 134.5 g/mol

Volume of the solution = ?

Plug the values we get Volume in mL = ( mass/molar mass) x ( 1000/M)

= (6.74/134.5) x (1000/0.212)

= 236.4 mL

Therefore the volume of the required solution is 236.4 mL

queen_honey_blossom answered 2 years ago

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