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Nastasia [14]
3 years ago
15

5.5x10² – 6.50x10' Express the calculation in correct significant digits

Chemistry
1 answer:
OLga [1]3 years ago
5 0

Answer:

6.15x10^2

Explanation:

Hello!

In this case, when performing mathematical operations with numbers in scientific notation, the first step is to write them in standard notation:

550 - 65.0

Thus, the result without any significant figures-based analysis is:

615.0

However, since 550 is significant to the ones and 65.0 to the tenths, we need to round the result to the bigger significance, in this case to the ones; therefore the appropriate result would be:

615

That in scientific notation would be:

6.15x10^2

Best regards!

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How many moles of hcl are required to make 500 ml of a 3.0 mol/l solution of hcl?
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1.5 moles

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8 0
1 year ago
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