How many moles of ions are in 27.5 g of MgCl2

How many moles of ions are in 27.5 g of MgCl2?

 

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MgCl2의 몰질량 = 95.21 g/mol

27.5 g / (95.21 g/mol) = 0.289 mol MgCl2

( 참고 https://ywpop.tistory.com/7738 )

 

 

 

MgCl2(aq) → Mg^2+(aq) + 2Cl^-(aq)

 

MgCl2 1 mol당 3 mol ion이 존재하므로,

3 × 0.289 = 0.867 mol

 

 

 

답: 0.867 mol

 

 

 

 

[키워드] MgCl2 27.5 g ion mol