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Gemiola [76]
3 years ago
12

Sean has trouble remembering all the geometry formulas. What can he do to make sure he doesn’t forget there formulas during his

test?
Chemistry
1 answer:
GaryK [48]3 years ago
7 0

Answer:

3.write the formulas somewhere on his test when he gets it

Explanation:

Some people may have problems memorizing a large number of formulas, especially those that have to do with science. In addition to the fact that there are many tips that people can use when memorizing these formulas, one of those tips is to write the formulas somewhere in the exam when they have it, so Sean will have the list of formulas on hand when you need them to use in your exam.

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Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} CH_4=\frac{0.96g}{16g/mol}=0.06moles

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According to stoichiometry :

1 mole of CH_4 require = 2 moles of O_2

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Thus CH_4 is the limiting reagent as it limits the formation of product and O_2 is the excess reagent.

As 1 moles of CH_4 give = 1 mole of CO_2

Thus 0.06 moles of CH_4 give =\frac{1}{1}\times 0.06=0.06moles  of CO_2

Mass of CO_2=moles\times {\text {Molar mass}}=0.06moles\times 44g/mol=2.64g

Thus 2.64 g of carbon dioxide that could be produced by the chemical reaction.

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