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sveta [45]
2 years ago
8

Which statement is correct regarding the rate of the reaction below? 3A + B yields 4X + 2Y

Chemistry
1 answer:
sashaice [31]2 years ago
7 0
I added a image with the complete question as well as its choices.

Answer:
The rate of formation of X is 4 times the rate of disappearance of B

Explanation:
The given is:
3A + B .............> 4X + 2Y
From this, we can see that the ratio between the reactant B and the product X is 1 :4.
This means that for every reacting mole B, 4 moles of product X are formed, which means that the ratio between the disappearance of B and the formation of X is 1:4

Hope this helps :)

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There is 35 mg of sodium in a can of Coke. You determine it to be 28 mg. What is your percent error?
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Answer:

The answer is

<h2>20 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual volume = 35 mg

error = 35 - 28 = 7

The percentage error is

P(\%) =  \frac{7}{35}  \times 100 \\  =  \frac{1}{5}  \times 100 \\  =  20

We have the final answer as

<h3>20 %</h3>

Hope this helps you

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