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2 years ago

246.24+238.278+98.3 Calculate to the appropriate number of significant figures

Chemistry

1 answer:

lilavasa [31]2 years ago

3 0

Answer:

The correct answer is 582.8.

Explanation:

To solve this problem, we must remember the rules for significant figures for addition. Recall that the answer should have the same number of decimal places as the term with the least number of decimal places that we are adding. In this case, we can see that out of our three terms, 98.3 has the least number of decimal places. This lets us know that our answer should be rounded to the tenths place.

With this in mind, we can compute the addition.

246.24 + 238.278 + 98.3

= 582.818 (unrounded value)

However, we stated that our answer should be rounded to the tenths place.

Therefore, our answer is 582.8.

Hope this helps!

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Answer:

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Explanation:

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This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. Mathematically written as:

$\text{Rate of diffusion}\propto \frac{1}{\sqrt{\text{Molar mass of the gas}}}$

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By taking their ratio, we get:

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If oxygen gas travels 1 meters in time t.

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