Answer :
Answer:
- 1,430 g
Explanation:
1) Data:
a) V = 1.40 liter
b) D = 1.02 g/ml
c) M = ?
2) Chemical principles and formula:
Density is a physical property which expresses the mass of matter contained per unit of volume.
In mathematical form it is given by the formula:
- density = mass / volume
- D = M / V
3) Calculations:
a) Convert liters to mililiters (ml):
- 1.40 liter × 1,000 ml / liter = 1,400 ml
b) Solve for M in the formula, substitute the data, and compute:
- D = M / V ⇒ M = D × V
- M = 1.02 g/ml × 1,400 ml = 1428 g ≈ 1430 g
Note that since the two data have 3 significant figures and the operation used is multiplication, the answer also has 3 significant figures.