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2 years ago

How many significant figures are needed in the answer when 1.31m is multiplied by 6.5 m

Chemistry

1 answer:

dmitriy555 [2]2 years ago

6 0

Answer:

two

Explanation:

The number of significant figures needed in the answer is 2.

This is because when finding the products of two numbers, the result is as accurate as the least number of significant figures of the numbers being multiplied.

Here the numbers being multiplied are;

1.31m

6.5m

1.31m has 3 significant figures

6.5m has 2 significant figures.

So, the product will have 2 significant figures

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Explanation:

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Now, to find the number of moles of ammonia we use the Avogadro's number:

if 1 mole of ammonia contains 6.022 × 10²³ molecules

then X moles of ammonia contains 6.022 × 10²⁴ molecules

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X = 10 moles of ammonia

Taking in account the chemical reaction we devise the following reasoning:

If 1 mole of nitrogen produces 2 moles of ammonia

then Y moles of nitrogen produces 10 moles of ammonia

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3 years ago

In the following reaction, how many liters of oxygen produce 560 liters of

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Answer:

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$V= \frac{v_{0}}{k}[(1+\epsilon )ln(\frac{1}{1-X}-\epsilon X)]$

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Therefore, the rate constant in case of CSTR comes out to be $2.8s^{-1}$

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Rearrange the above formula is as follows.

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2 years ago

How many significant figures are needed in the answer when 1.31m is multiplied by 6.5 m​

How many significant figures are needed in the answer when 1.31m is multiplied by 6.5 m