Analysis of salts

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4 Terms

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What are in organic salt hydrates?

In organic salts where water molecules have been incorporated into their crystal structure

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What does anhydrous mean?

Contains no water molecules in its chemical structure

3
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How do you find the empirical formula of a hydrated

-Write down the chemical formula of the anhydrous salt and water

-Write down the mass of the anhydrous salt and water

-Convert masses to moles

-Find the simplest whole number molar ratio by dividing both moles by the number of moles of anhydrous salt

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How do you solve mass volume stoichiometric problems?

  1. Write a balanced chemical equation for the reaction, identifying the known (given) and unknown (required) quantities of substance.

  2. Calculate the number of moles of the known quantity of substance present using the formulas shown in the preceding box.

  3. From the balanced equation, find the molar ratio that states the proportion of known to unknown quantities in the reaction. Convert this to a fraction of coefficient of unknown divided by coefficient of known. To calculate the number of moles of unknown required substance, multiply the number of moles of the known substance by this fraction.

  4. Calculate the quantity of the required substance