Final answer:
The mass present in 68.2 cm³ of a substance with a density of 2.33 g/cm³ is calculated using the formula for mass (Mass = Density × Volume), resulting in 158.886 grams.
Step-by-step explanation:
To find the mass that is present in 68.2 cm³ of a substance having a density of 2.33 g/cm³, we use the formula for mass which is:
Mass = Density × Volume
Substituting the given values into the formula:
Mass = 2.33 g/cm³ × 68.2 cm³
This calculation results in:
Mass = 158.886 g
Therefore, the mass of the substance is 158.886 grams.