Answer:
Density of water at
Explanation:
The relationship between density and temperature is shown below:
Where,
is the density at temperature
is the coefficient of volume expansion
is the change in temperature which is:
Given,
Also,
So,
n = 0.207 mole
We have,
P = 1 atm
V = 5 liter
R = 0.0821 L.atm/mol.K
T = 293 K
We need to find the value of n. The relation is as follows :
PV = nRT
Solving for n,
So, the value of n is 0.207 mol.
a
Calculate density
Weight/mass
126
g
Volume
15
cm³
Density
8,400
kg/m³
The smallest unit of a compound is a molecule, which is made up of atoms held together by bonds.
Answer: I think it's B.