How to make 1L 50% sucrose solution from 20% solution?

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  • Thread starter Thread starter TytoAlba95
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SUMMARY

The discussion focuses on preparing a 1L 50% sucrose solution from a 20% sucrose stock solution using the formula V1S1=V2S2. Participants confirmed that to determine the required volume of the 20% sucrose solution, one must treat the percentage as a unit that can be canceled, simplifying the calculation. The volumes of Tris and EDTA solutions needed for the STE buffer were also specified as 100ml and 50ml, respectively. This method effectively aids in understanding solution preparation in laboratory settings.

PREREQUISITES
  • Understanding of the formula V1S1=V2S2 for solution dilution
  • Basic knowledge of weight/volume percentage (w/v %) calculations
  • Familiarity with laboratory solution preparation techniques
  • Experience with Tris-EDTA buffer components
NEXT STEPS
  • Research how to calculate dilutions for different concentration solutions
  • Learn about preparing various buffer solutions, including Tris-EDTA
  • Explore the implications of weight/volume percentage in biochemical applications
  • Investigate common laboratory practices for solution storage and stability
USEFUL FOR

This discussion is beneficial for laboratory technicians, biochemists, and students involved in solution preparation and buffer formulation in research settings.

TytoAlba95
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Using the formula V1S1=V2S2,
I have found the volumes of stock solutions needed to make Tris-EDTA of the STE buffer.
VTris=100ml and VEDTA=50ml.

How to find out volume of sucrose ?
 
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You would setup the calculation in the same way, treating "%" as a unit that can be canceled on both sides of the equation (for w/v % it is essentially a unit representing "g/100mL").
 
Thank you so much. I got it. Your pointer

treating "%" as a unit

really helped.
 

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