Finding volume using Molarity + Equation

  • Thread starter Thread starter ballinbob
  • Start date Start date
  • Tags Tags
    Molarity Volume
Click For Summary
SUMMARY

The discussion centers on calculating the volume of 0.0138 M sodium thiosulfate (Na2S2O3) required to dissolve 0.250 g of silver bromide (AgBr). The relevant chemical equation is AgBr (s) + Na2S2O3 (aq) → Na3Ag(S2O3)2 (aq) + NaBr (aq). Participants confirmed that the correct volume is approximately 194 mL, with minor discrepancies attributed to variations in molar mass calculations. The consensus emphasizes the importance of precise molar mass values in achieving accurate results.

PREREQUISITES
  • Understanding of molarity calculations
  • Familiarity with stoichiometry in chemical reactions
  • Knowledge of molar mass determination
  • Basic principles of solution chemistry
NEXT STEPS
  • Study molarity calculations in detail
  • Explore stoichiometric conversions in chemical equations
  • Learn how to accurately determine molar masses of compounds
  • Investigate the role of sodium thiosulfate in photographic processes
USEFUL FOR

Chemistry students, educators, and professionals involved in analytical chemistry or photographic processes will benefit from this discussion.

ballinbob
Messages
1
Reaction score
0

Homework Statement



In the photographic process silver bromide is dissolved by adding sodium thiosulfate. Determine the volume in mL of 0.0138 M Na2S2O3 should be added to dissolve 0.250 g of AgBr.

Homework Equations



The equation is : AgBr (s) + Na2S2O3 (aq) → Na3Ag(S2O3)2 (aq) + NaBr (aq)

The Attempt at a Solution



I know your supposed to use the definition of molarity and do some conversions, but it would never turn out right. The answer sheet says the answer is 194 mL.

Thanks everyone
 
Physics news on Phys.org
Show how you are doing it. I got 193 mL - most likely because of the slightly different molar masses used.
 

Similar threads

Finding volume of one compound using Stoichiometry equation
  • · Replies 2 ·
Replies
2
Views
2K
Stoichiometry to find the concentration of O2?
  • · Replies 3 ·
Replies
3
Views
4K
Chemistry How to Calculate Mole Fractions and Molar Volume in a Thermodynamic System?
  • · Replies 2 ·
Replies
2
Views
3K
Calculating the molar concentration of H3O+ and pH of solutions
  • · Replies 4 ·
Replies
4
Views
6K
Spectator Ions and Molarity Questions
  • · Replies 22 ·
Replies
22
Views
5K
Titration of thiosulphate with KIO3, molarity? PLEASE HELP
  • · Replies 2 ·
Replies
2
Views
10K
Determining Volume of Base for ASA Experiment
  • · Replies 2 ·
Replies
2
Views
5K
Question Related To Volume Strength Of H2O2.
  • · Replies 3 ·
Replies
3
Views
6K
Identifying Undissolved Silver Halides in Precipitation Reactions
  • · Replies 8 ·
Replies
8
Views
5K
A problem in volumetric calculations in Chemistry
  • · Replies 2 ·
Replies
2
Views
2K