Answer:
Explanation:
1) Data:
a) m = 1.25 × 10² g
b) V = 51 ml
d) density = ?
2) Principles and formulae:
Density is a concentration unit that tells the ratio of the mass of a substance to its volume.
Where d is the density of the substance, m is the mass, and V is the volume.
3) Solution:
a) Substitute the data into the equation:
- d = m / V = 1.25 × 10² g / 51 ml = 2.45 g/ml.
b) Use the correct number of significant digits: 2.45 g/ml must be rounded to two signficant figures, i.e. to 2.5 g/ml, since the volume was given with two significant digits.
