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Allushta [10]
3 years ago
6

Write the numbers in scientific notation.

Chemistry
1 answer:
LenKa [72]3 years ago
7 0
2.917 x 10^2 0.960x 10^1
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Perform the following mathematical operation and express the results to the correct number of significant figures. (0.102 x 0.08
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<u>2.26 </u>

<u></u>

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First you should know what are significant figures,

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3. The zero before the decimal and before any non-zero digit is non significant. Example : 0.003 has only 1 significant figure.

4. The zero after non zero are non - significant . But the zeros after the decimal point are significant.

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300.0 has 4 significant figure

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Look at the number having minimum significant digits :

It is 3 (every number has 3- significant figures ) So the answer should also contain 3 - significant figures.

\frac{0.102\times 0.0821\times 273}{1.01}

First solve the numerator part

\frac{2.285}{1.01}

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Round off this number to 3 significant figures.

Answer is =<u> 2.26</u>

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3455

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