Step-by-step explanation:
First, let's simplify the expression inside the parentheses:
8.12 - 0.9800 = 7.14 g 3.4501 + 0.16 = 3.6101 ml
Now we can multiply:
7.14 g x 3.6101 ml = 25.775914 g·ml
Rounding off to the correct accuracy (which is the product of the two original values), we get:
25.8 g·ml