Empirical Formula of a Hydrate

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SUMMARY

The discussion centers on determining the empirical formula of hydrates, specifically copper sulfate hydrate (CuSO4*XH2O) and magnesium chloride hydrate (MgCl2*XH2O). Participants emphasize the importance of converting experimental measurements into a molar ratio to find the unknown variable X, representing the number of water molecules in the hydrate. The conversation also clarifies the distinction between a prediction and a hypothesis, providing examples of "if-then" statements to aid in formulating a hypothesis for the lab experiment.

PREREQUISITES
  • Understanding of empirical formulas and molar ratios
  • Familiarity with copper sulfate hydrate (CuSO4*XH2O) and magnesium chloride hydrate (MgCl2*XH2O)
  • Basic knowledge of laboratory measurement techniques
  • Ability to formulate hypotheses and predictions in scientific experiments
NEXT STEPS
  • Research the process of determining empirical formulas in laboratory settings
  • Learn about the principles of molar ratios in chemical compounds
  • Study the properties and uses of copper sulfate and magnesium chloride hydrates
  • Explore examples of formulating scientific hypotheses and predictions
USEFUL FOR

This discussion is beneficial for chemistry students, educators, and anyone involved in laboratory experiments focusing on hydrates and empirical formula determination.

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Homework Statement



I have a lab to complete, but I can't produce a reasonable hypothesis. This is the information I'm given to base my hypothesis on.

Homework Equations



In this experiment, you will empirically determine the ratio of water to salt in the hydrates copper sulfate hydrate (CuSO4*XH2O) and magnesium chloride hydrate (MgCl2*XH2O). The symbol X in the formulas represent the unknown number of water molecules.

The formula for the hydrate gives the number of water molecules in the hydrate per molecule of salt. Your experimental measurements will be converted to a molar ratio, that is, the ratio of moles of water to moles of the salt in the hydrate in order to find a value for X.


The Attempt at a Solution



I understand what my goal is and how I'm going to be getting there, but I can't think of a prediction in an "if-then" format.
 
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Can you give examples of prediction in the "if-then" format?
 
Last edited by a moderator:
sure, an example would be something like:

If red and blue is mixed, then the resulting color will be purple.

I hope that was an adequate example.
 
This is prediction, not hypothesis.
 
Last edited by a moderator:

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