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coldgirl [10]
3 years ago
7

4 Al + 3 O2 --> 2 Al2O3

Chemistry
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

The answer to your question is 7.4 moles of Aluminum

Explanation:

Data

moles of Al = ?

moles of Al₂O₃ = 3.7

Balanced chemical reaction

                4 Al  +  3 O₂  ⇒  2 Al₂O₃

To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical equation.

                4 moles of Aluminum ----------------- 2 moles of Al₂O₃

                 x                                  ----------------- 3.7 moles of Al₂O₃

                            x = (3.7 x 4) / 2

                            x = 14.8 / 2

                            x = 7.4 moles of Aluminum

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Explanation:

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2

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5 0
2 years ago
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lianna [129]
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5 0
3 years ago
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lesya [120]

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5 0
3 years ago
Read 2 more answers
Which of the following hypotheses is testable by using the scientific method?
Troyanec [42]

Answer:

d

Explanation:

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7 0
3 years ago
How many moles are in 5.67x10^24 atoms of RbCl?
Mademuasel [1]

Answer:

<h2>9.42 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{5.67 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 9.418604...

We have the final answer as

<h3>9.42 moles</h3>

Hope this helps you

4 0
3 years ago
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