Calculating the Mass & Comp. of Methanol Mixtures

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SUMMARY

The discussion focuses on calculating the mass and composition of two methanol-water mixtures. The first mixture contains 40wt% methanol, and the second contains 70wt% methanol. When 200g of the first mixture is combined with 150g of the second, the total mass is 350g, resulting in a final composition of 52.9wt% methanol. The calculations confirm the accuracy of the mass and composition derived from the mixtures.

PREREQUISITES
  • Understanding of weight percentage (wt%) calculations
  • Basic knowledge of mixture composition
  • Familiarity with mass conservation principles
  • Ability to perform arithmetic operations with percentages
NEXT STEPS
  • Study the principles of weight percentage in solutions
  • Learn about mass balance in chemical mixtures
  • Explore methods for calculating concentrations in multi-component systems
  • Investigate the properties and uses of methanol in chemical processes
USEFUL FOR

Chemistry students, chemical engineers, and anyone involved in the formulation and analysis of chemical mixtures will benefit from this discussion.

yoleven
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Homework Statement


Two methanol-water mixtures are contained in separate flasks. The first mixture contains 40wt% methanol and the second contains 70wt% methanol. If 200g of the first mixture is combined with 150g of the second, what are the mass and composition of the product?


Homework Equations





The Attempt at a Solution


the first solution .4*200=80
the second .7*150=105
80+105=350x
x=52.9%wt methanol
amount is 150+200=350g
 
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That seems fine. What's the problem?
 
No problem. I just wanted to check it.
Sorry, I should have said that.
Thanks.
 

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