Count the significant digits
-6.0* 10 to power of-3 kJmol
89400kg
8.4* 10 to power of-1 mL
0.007300 J
The number of significant digits in each value is as follows:
-6.0* 10 to power of-3 kJmol: 2 significant digits
89400kg: 4 significant digits
8.4* 10 to power of-1 mL: 2 significant digits
0.007300 J: 4 significant digits
To count the significant digits in the given numbers, follow these steps:
1. -6.0 * 10^-3 kJ/mol:
- The significant digits are "6" and "0". The "-3" does not count as a significant digit as it represents the power of 10.
- So, there are 2 significant digits in -6.0 * 10^-3 kJ/mol.
2. 89400 kg:
- The significant digits are "8", "9", "4", "0", and "0" (note that trailing zeroes are significant if they appear after the decimal point).
- So, there are 5 significant digits in 89400 kg.
3. 8.4 * 10^-1 mL:
- The significant digits are "8", "4", and "0" (the "-1" does not count as a significant digit).
- So, there are 3 significant digits in 8.4 * 10^-1 mL.
4. 0.007300 J:
- The significant digits are "7", "3", "0", and "0".
- So, there are 4 significant digits in 0.007300 J.