ebarberj06 ebarberj06
  • 04-12-2017
  • Mathematics
contestada

how much pure acid is needed to mix with 18L of 30% acid to increase the concentration of 50% acid

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tynollette tynollette
  • 04-12-2017
x+0.3*18=0.5(x+18)
0.5x=9-5.4=3.6
x=7.2
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