Why is it important to study chemical reactions in closed containers

Chemistry

2 answers:

BaLLatris [955]3 years ago

6 0

not to have anything that was not supposed to react with the chemicals in the container. I think.

Law Incorporation [45]3 years ago

4 0

When preforming a chemical reaction, it is crucial to keep it in a closed container.

Why is this?

A closed container is also known as a closed system. This means that what ever is inside the container does not react with anything OUTSIDE the container. Air, oxygen, or anything else could completely RUIN the reaction and you'll end up coming with weird, unexpected results.

So, open systems are commonly used for reactions.

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How many moles of O₂ are needed to react completely with 35.0 mol of FeCl₃? *

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Answer:

26.3 moles of O₂ are needed to react completely with 35.0 mol of FeCl₃

Explanation:

To determine the number of moles of O₂ that are needed to react completely with 35.0 mol of FeCl₃, it is possible to use the reaction stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), and rule of three as follows: if 4 moles of FeCl₃ react with 3 moles of O₂, 35 moles of FeCl₃ with how many moles of O₂ will it react?

$molesofO_{2} =\frac{35 moles of FeCl_{3}*3 moles of O_{2} }{4 moles of FeCl_{3}}$