Empirical Formula of a Hydrate

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Discussion Overview

The discussion revolves around formulating a hypothesis for a lab experiment involving the empirical determination of the ratio of water to salt in copper sulfate hydrate and magnesium chloride hydrate. The focus is on understanding how to express predictions in a specific format.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant seeks assistance in creating a hypothesis for their lab experiment involving hydrates.
  • The experiment aims to determine the unknown number of water molecules in the hydrates through a molar ratio of water to salt.
  • Another participant provides an example of a prediction in "if-then" format, illustrating a general approach to making predictions.
  • A later reply distinguishes between prediction and hypothesis, suggesting that the provided example does not meet the criteria for a hypothesis.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the distinction between prediction and hypothesis, as one participant challenges the adequacy of the example given.

Contextual Notes

There may be limitations in understanding the specific requirements for formulating a hypothesis versus a prediction, which could affect the clarity of the discussion.

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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?
 
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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.
 
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