What is the result of 6.022 × 10^23 rounded to three significant figures?

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Question: What is the result of 6.022 × 10^23 rounded to three significant figures?

Options:

Correct Answer: 6.02 × 10^23

Solution:

6.022 rounded to three significant figures is 6.02 × 10^23.

What is the result of 6.022 × 10^23 rounded to three significant figures?

What is the result of 6.022 × 10^23 rounded to three significant figures?

Step 1: Identify the number you need to round, which is 6.022.
Step 2: Determine how many significant figures you want, which is three in this case.
Step 3: Look at the first three digits of 6.022, which are 6, 0, and 2.
Step 4: Check the next digit after the third significant figure, which is 2.
Step 5: Since the next digit (2) is less than 5, you do not round up the last significant figure.
Step 6: Therefore, 6.022 rounded to three significant figures is 6.02.
Step 7: Keep the scientific notation part, which is 10^23, the same.
Step 8: Combine the rounded number with the scientific notation to get 6.02 × 10^23.

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