taytay2437 taytay2437
  • 03-08-2018
  • Chemistry
contestada

How many grams of nacl are in 250 g of a 15.0% (by weight) solution?

Respuesta :

isyllus
isyllus isyllus
  • 08-08-2018

Answer: -

37.5 g of NaCl are in 250 g of a 15.0% (by weight) solution.

Explanation: -

Total mass = 250 g

Percentage of NaCl = 15.0 %

= [tex] \frac{Number of grams of NaCl present}{total mass} [/tex]

Thus [tex] \frac{15}{100} [/tex] = [tex] \frac{Number of grams of NaCl present}{250g} [/tex]

Number of grams of NaCl present = [tex] \frac{15 x 250g}{100} [/tex]

= 37.5 g

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