To eight significant figures, avogadro's constant is 6.0221367×1023mol−1. which of the following choices demonstrates correct rounding?

All of the following choices demonstrates correct rounding

There are general rules used in rounding numbers

for example, In rounding the nearest hundreds number, then we see the digit in the number tens (right of the digit hundreds), if it is worth 0, 1, 2, 3 or 4, then it remains, but if it shows numbers 5, 6, 7, 8 or 9, then the digit to be rounded is added one, and the right-hand side is 0

Choice of answer we add from the problem above:

6,022 × 10²³mol⁻¹

6.0 × 10²³mol⁻¹

6,02214 × 10²³mol⁻¹

For the Avogadro number of 6.0221367 × 10²³mol⁻¹

After this 4th digit we see number 1 so the rounding remains to be: 6,022

So all of the answer choices are correct

five numbers that are round up and round down to 600

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all the numbers that round to 50

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round 4,398,202 to the nearest 100

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Round number 4278649 to nearest 100

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Keywords: round up, round down, the rounded digit

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