Hydrate Composition: Calculating Mole Ratio of Water and Copper Sulfate

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SUMMARY

The discussion focuses on calculating the mole ratio of water to copper sulfate, specifically with 0.283 moles of water and 0.503 moles of copper sulfate. Participants clarify that the mole ratio is determined by dividing the moles of each substance, resulting in a ratio of approximately 0.562. The conversation emphasizes the importance of achieving integer ratios for practical applications, suggesting that empirical formulas may be necessary for accurate calculations. Ultimately, the original poster gains clarity on the topic with assistance from peers.

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  • Understanding of mole calculations in chemistry
  • Familiarity with empirical formulas
  • Basic knowledge of ratios and proportions
  • Experience with experimental data analysis
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  • Research how to derive empirical formulas from experimental data
  • Learn about mole-to-mole conversions in chemical reactions
  • Explore common errors in experimental measurements and their impact on calculations
  • Study the significance of integer ratios in stoichiometry
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Chemistry students, educators, and anyone involved in laboratory work or chemical calculations will benefit from this discussion, particularly those focusing on stoichiometry and empirical formula derivation.

sweet21
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when you have .283 moles of water and .503 moles of copper sulfate, how do you find the mole ratio between the water and coopper sulfate?
 
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Dividing the numbers.

I don't think that's the answer you are looking for, but I have no idea what the real question is.
 
You need to multiply or divide (EXCLUSIVE OR) the ratio by 1 so that each part is a natural number, or as close to natural numbers as reasonably possible.
 
Last edited:
symbolipoint said:
You need to multiply or divide (EXCLUSIVE OR) the ratio by 1 so that each part is a natural number, or as close to natural numbers as reasonably possible.

I am sure that's not what you have aimed at. Multiplying or dividing by 1 doesn't change the situation :wink:

My first idea was too that sweet should look for integer ratio, but numbers shown (283/503) lead nowhere.
 
Borek said:
I am sure that's not what you have aimed at. Multiplying or dividing by 1 doesn't change the situation :wink:

My first idea was too that sweet should look for integer ratio, but numbers shown (283/503) lead nowhere.

1 is a rational number which can be expressed as N/N for any real number N.

I did not actually try to solve the original poster's question; only offered a commonly used suggestion. If he is trying to process experimental measurements, some of the data could have errors, even somewhat small errors.
 
ok, I think i got it now, we had to use emperical formulas, my teacher helped me out a little bit, now i think i know what I am doing...:rolleyes:
 

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