A chemist must prepare 250.0 ml. of hydrochloric acid solution with a pH of 1.10 at 25 "C. He will do this in three steps: Fa 250.0 ml. volumetric flask about halfway with distiled water. Measure out a small volume of concentrated (8.OM) stock hydrochloric acd solution and add it to the fask • F the fask to the mark with distiled water. Calculate the volume of concentrated hydrochioric acid that the chemist must measure out in the second step. Round your answer to 2 significant digits

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A chemist must prepare 250.0 ml. of hydrochloric acid solution with a pH of 1.10 at 25 "C.
He will do this in three steps:
Fil a 250.0 ml. volumetric flask about halfway with distilled water.
Measure out a small volume of concentrated (8.0M) stock hydrochloric acid solution and add it to the lask.
• Fil the flask to the mark with distilled water.
Calculate the volume of concentrated hydrochloric acid that the chemist must measure out
the second step. Round your answer to 2 significant digits.
Transcribed Image Text:A chemist must prepare 250.0 ml. of hydrochloric acid solution with a pH of 1.10 at 25 "C. He will do this in three steps: Fil a 250.0 ml. volumetric flask about halfway with distilled water. Measure out a small volume of concentrated (8.0M) stock hydrochloric acid solution and add it to the lask. • Fil the flask to the mark with distilled water. Calculate the volume of concentrated hydrochloric acid that the chemist must measure out the second step. Round your answer to 2 significant digits.
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