What is the Molecular Weight of Each Compound in Moles/Grams for BaCl2 and NaF?

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    Stoichiometry
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Discussion Overview

The discussion revolves around calculating the molecular weight of compounds involved in a chemical reaction, specifically BaCl2 and NaF, and determining the mass needed to produce a specific amount of BaF2. The scope includes homework-related problem-solving and stoichiometric calculations.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant presents a balanced reaction equation and seeks to understand how to achieve 100g of BaF2 from the reaction.
  • Another participant suggests using the stoichiometric coefficients from the balanced equation to convert mass to moles and back to mass.
  • A participant calculates the molecular weight of BaF2 as 173.31 and determines that 100g of BaF2 corresponds to approximately 0.57 moles.
  • Further questions are raised about how many moles of BaCl2 and NaF are needed to produce 0.57 moles of BaF2.
  • One participant concludes that 1.14 moles of NaF and 0.57 moles of BaCl2 are required, leading to calculated masses of 47.89g of NaF and 118.77g of BaCl2.
  • A later reply expresses satisfaction with the calculations, indicating a sense of accomplishment.

Areas of Agreement / Disagreement

Participants generally agree on the stoichiometric relationships and calculations presented, but there is no explicit consensus on the correctness of the final mass calculations for BaCl2 and NaF.

Contextual Notes

Some assumptions about the accuracy of molecular weights and the precision of calculations may not be explicitly stated. The discussion does not resolve the correctness of the final mass values derived.

Who May Find This Useful

Students working on stoichiometry and molecular weight calculations in chemistry, particularly in the context of chemical reactions.

Chills
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Homework Statement



BaCl2+ 2NaF -->BaF2 + 2NaCl

Homework Equations



See above...how to get 100g of the BaF2 product?

The Attempt at a Solution


Did molecular weight of each compound in moles/g
 
Physics news on Phys.org
Found MW for BaF2 as 173.31
Then took 100g/173.31 to get 0.57 moles. Did MW for other compounds now not sure where to go from here?
 
Have you read the linked page?

How many moles of BaCl2 needed to produce 0.57 moles of BaF2?

How many moles of NaF needed to produce 0.57 moles of BaF2?
 
Need 1.14moles to produce 0.57 moles BaF2
Need 0.57 BaCl2 moles to produce 0.57 moles BaF2
So I need 47.89g of NaF
And 118.77g of BaCl2
Is that right?
 
Wasn't that hard :smile:
 
My noodle is definitely warm now hehe
TY
 

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