beautiful blue crystals CuSO4•5H2O의 함수율

beautiful blue crystals CuSO4•5H2O의 함수율

 

 

As a solution of copper sulfate slowly evaporates,

beautiful blue crystals made of Cu(II) and sulfate ions form

such that water molecules are trapped inside the crystals.

The overall formula of the compound is CuSO4•5H2O.

 

a) What is the percent water in this compound

b) At high temperatures the water in the compound is driven off as steam.

What mass percentage of the original sample of the blue solid is lost as a result?

 

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> CuSO4의 몰질량 = 159.6086 g/mol

> H2O의 몰질량 = 18.0153 g/mol

 

> CuSO4•5H2O의 몰질량

= 159.6086 + 5×(18.0153) = 249.6851 g/mol

 

 

 

%H2O = [5H2O / CuSO4•5H2O] × 100

= [(5×18.0153) / 249.6851] × 100 = 36.076%

 

 

 

답: a) 36%, b) 36%

 

 

 

 

[ 관련 글 https://ywpop.tistory.com/6536 ] 무수물과 수화물. 결정수

 

 

 

[키워드] CuSO4•5H2O의 함수율 기준문서, CuSO4*5H2O의 함수율 기준문서