Answered

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1) If a chemist has a 5.50 M solution of HCl, how many mL of acid will they need to add to how many mL of water in order to create 20.0 mL of 1.5 M HCl

Sagot :

maacastrobr

Answer:

5.4 mL of acid need to be added to 14.6 mL of water.

Explanation:

We can calculate how many mL of acid are needed by using the C₁V₁=C₂V₂ formula:

  • 5.50 M * V₁ = 1.5 M * 20.0 mL
  • V₁ = 5.4 mL

Then we calculate how many mL of water have to be added in order to reach 20.0 mL:

  • 20.0 mL - 5.4 mL = 14.6 mL

Thus, 5.4 mL of acid need to be added to 14.6 mL of water.

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