The number of significant figures in 0.00150 is ....
3
the two 0s at the front don't count but the one after the 5 does, because if it wasn't there, it could be 0.0015(1, 2, 3 or 4). the 0 at the end means it is accurately 0.00150, not anything else
3 sig. fig.
Thanks a lot
Answer is 3
To determine the number of significant figures in a given number, we need to follow a few rules:
1. Non-zero digits are always significant. For example, in the number 1234, all four digits are significant.
2. Any zeros between non-zero digits are also significant. For example, in the number 1056, all four digits are significant.
3. Leading zeros (zeros to the left of the first non-zero digit) are not significant. For example, in the number 0.0032, only the two non-zero digits are significant.
4. Trailing zeros (zeros to the right of the last non-zero digit) are significant only if the number contains a decimal point. For example, in the number 5200, two trailing zeros are not significant. However, in the number 5200.00, all six digits are significant.
Applying these rules to the number 0.00150:
- The leading zero does not count as a significant figure.
- The non-zero digits are 1, 5, and 0.
- The zero between the 1 and 5 is significant because it is between non-zero digits.
- The trailing zero after the 0.0015 is significant because there is a decimal point present.
Therefore, there are four significant figures in the number 0.00150.