Preparing Aqueous Solutions for Chemistry Students

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SUMMARY

This discussion focuses on the preparation of specific aqueous solutions for chemistry students. The first solution involves creating 1.10 kg of a 0.0515 m ethanol solution, requiring precise calculations of ethanol (C2H5OH) and water. The second solution entails preparing 511 g of a 15.0 mass % HCl solution from a 35.3 mass % HCl stock solution. Participants seek guidance on the necessary steps and calculations for these preparations.

PREREQUISITES
  • Understanding of molality and mass percent concentration
  • Basic knowledge of solution preparation techniques
  • Familiarity with the properties of ethanol (C2H5OH) and hydrochloric acid (HCl)
  • Ability to perform mass and volume calculations
NEXT STEPS
  • Learn how to calculate molality for solution preparation
  • Study mass percent concentration and its applications in solution chemistry
  • Explore dilution calculations for preparing solutions from concentrated stocks
  • Review the safety protocols for handling ethanol and hydrochloric acid
USEFUL FOR

Chemistry students, educators, and laboratory technicians involved in solution preparation and chemical calculations.

jdhutto
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Chem problem need help...

Homework Statement



How would you prepare the following aqueous solutions?
(a) 1.10 kg of 0.0515 m ethanol (C2H5OH) from ethanol and water
Add___ g C2H5OH to ____ g H2O.

(b) 511 g of 15.0 mass % HCl from 35.3 mass % HCl
Add___ g of 35.3% HCl to ___ g of water.



Homework Equations





The Attempt at a Solution



Im not sure what to do here...somebody please tell me the steps
 
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