The density of lead is
1 answer:
Answer : The volume occupied by lead is, 2.20 mL
Explanation :
Density : It is defined as the mass contained per unit volume.
Formula used for density :
Given :
Mass of an lead = 25.0 grams
Density of lead = 11.34 g/mL
Now put all the given values in the above formula, we get the volume of lead.
Therefore, the volume occupied by lead is, 2.20 mL
You might be interested in
Answer:
The empirical formula is =
The molecular formula =
Explanation:
% of C = 10.13
Molar mass of C = 12.0107 g/mol
% moles of C = 10.13 / 12.0107 = 0.8434
% of Cl = 89.87
Molar mass of Cl = 35.453 g/mol
% moles of Cl = 89.87 / 35.453 = 2.5349
Taking the simplest ratio for C and Cl as:
0.8434 : 2.5349
= 1 : 3
The empirical formula is =
Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.
Thus,
Molecular mass = n × Empirical mass
Where, n is any positive number from 1, 2, 3...
Mass from the Empirical formula = 12*1 + 3*35.5 = 118.5 g/mol
Molar mass = 237 g/mol
So,
Molecular mass = n × Empirical mass
237 = n × 118.5
⇒ n ≅ 2
The molecular formula =