Count the significant digits
1.0* 10 to power of -2 mL
0.005700J
-6.0* 10 to power of-3 kJmol
71600kg
1.0 * 10 to power of -2 mL: 2 significant digits (1 and 0)
0.005700J: 4 significant digits (5, 7, 0, and 0)
-6.0 * 10 to power of -3 kJmol: 2 significant digits (6 and 0)
71600kg: 3 significant digits (7, 1, and 6)
To count significant digits, follow these steps:
1.0 * 10^(-2) mL:
- Since scientific notation is used, only the non-zero digits (1) are counted, resulting in 1 significant digit.
0.005700 J:
- Ignore any leading zeros (0.0057) and count all the remaining digits, resulting in 4 significant digits.
-6.0 * 10^(-3) kJ/mol:
- Ignore any leading zeros (-6.0) and count all the remaining digits, resulting in 2 significant digits.
71600 kg:
- Count all the digits, regardless of their value, resulting in 5 significant digits.
In summary, the number of significant digits for each value is:
1.0 * 10^(-2) mL: 1 significant digit
0.005700 J: 4 significant digits
-6.0 * 10^(-3) kJ/mol: 2 significant digits
71600 kg: 5 significant digits