NaCl 시약으로 20 ppm Na^+ 용액 만들기

NaCl 시약으로 20 ppm Na^+ 용액 만들기

 

 

How many grams of NaCl should be weighed

to prepare 1 L of 20 ppm solution of Na^+?

 

 

Prepare a 20 ppm stock solution of sodium ions from solid sodium chloride.

 

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20 ppm = 20 mg/L

( 설명 https://ywpop.tistory.com/5345 )

 

 

20 mg = 0.020 g Na^+

 

 

0.020 g Na × (58.44 g NaCl / 22.99 g Na)

= 0.020 × (58.44 / 22.99)

= 0.0508 g NaCl

 

 

If you dissolve 0.0508 g of sodium chloride in 1 L of water,

you'll get a 20 ppm Na^+ solution.

 

 

답: 0.0508 g

 

 

 

[ 관련 예제 https://ywpop.tistory.com/13186 ] NaCl 시약으로 1000 ppm Cl^- 용액 만들기