If a length is measured as 150.0 cm, how many significant figures does this meas
Practice Questions
Q1
If a length is measured as 150.0 cm, how many significant figures does this measurement have?
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Questions & Step-by-Step Solutions
If a length is measured as 150.0 cm, how many significant figures does this measurement have?
Step 1: Identify the digits in the measurement 150.0 cm.
Step 2: Count all non-zero digits. In this case, 1 and 5 are non-zero.
Step 3: Count the zeros. The zero between 1 and 5 is significant because it is between non-zero digits.
Step 4: The zero after the decimal point (the last zero) is also significant because it indicates precision.
Step 5: Add up all the significant figures: 1 (from 1) + 1 (from 5) + 1 (from the zero between) + 1 (from the zero after the decimal) = 4 significant figures.
Significant Figures – Understanding how to identify significant figures in a measurement, including the rules for zeros.
