Chemistry problem equation?

2 Answers

• Dr.A

  1 month ago

  2.5 L = 2500 mL

  mass solution = 2500 mL x 1 g/mL = 2500 g

  0.085 % = mass solute 100 / mass solution = mass solute x 100 / 2500

  mass solute = 2500 x 0.085 / 100=2.13 g

  3
• Anonymous

  1 month ago

  so this is what you use…you use a little dimensional analysis:

  first turn the g/mL to g/L

  _1.00g___ x__ 1000mL_ = 1000g/L

  mL…………………1 L

  now do the rest:

  ___2.5L dioxin____ x __1000g___= 2500 g dioxin water

  ……………………………..1 L

  but since it’s onli 0.085% by mass…you have to multiply 2500g by 0.00085 (percents are always out of a hundered so when you’re multiplying it to a number you need to divide it by a 100) and this should give you 2.125g

  2.125 g

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