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화학/용액의 농도

500.0 g potassium phosphate 1.50 L molartiy

by 영원파란 2023. 3. 21.

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500.0 g potassium phosphate 1.50 L molartiy

500.0 g K3PO4 1.50 L molartiy

 

 

A 500.0 g sample of potassium phosphate is dissolved

in enough water to make 1.50 L of solution.

What is the molarity of the solution?

 

---------------------------------------------------

 

K3PO4의 몰질량 = 212.27 g/mol 이므로,

500.0 g / (212.27 g/mol) = 2.35549 mol

( 참고 https://ywpop.tistory.com/7738 )

 

 

 

몰농도 = 용질 mol수 / 용액 L수

( 참고 https://ywpop.tistory.com/3222 )

 

= 2.35549 mol / 1.50 L

= 1.57 mol/L

 

 

 

답: 1.57 M

 

 

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