Answer:
There is 5 significant figures in 811.40 grams
Explanation:
The significant figures are units that can be taking into account to write a figure.
Exists two general rules for it:
1. The numbers including zero (0) that are to the right of the figure are counted as a significant figure example: 345.60 has 5 significant figures
2. The zero (0) that are to the left of the figure are NOT counted as a significant figure example: 0.005 has 1 significant figure
