<h2>answer:</h2>
Various Constituents of Petroleum and their Uses
Constituents of Petroleum
Kerosene
uses➪ Fuel for stoves, in lamps and as aviation fuel for jet aircrafts
Constituents of Petroleum
LPG
uses➪ Fuel for home and industry
Constituents of Petroleum
Lubricating oil
uses➪Used for Lubrication in machines and engines
Constituents of Petroleum
Paraffin wax
uses➪ Ointments, candles, vaseline etc.
It’s definitely persuade!
Answer:
6.05 g
Explanation:
Molarity of a substance , is the number of moles present in a liter of solution .
M = n / V
M = molarity
V = volume of solution in liter ,
n = moles of solute ,
From the question ,
M = 200mM
Since,
1 mM = 10⁻³ M
M = 200 * 10⁻³ M
V = 250 mL
Since,
1 mL = 10⁻³ L
V = 250 * 10⁻³ L
The moles can be calculated , by using the above relation,
M = n / V
Putting the respective values ,
200 * 10⁻³ M = n / 250 * 10⁻³ L
n = 0.05 mol
Moles is denoted by given mass divided by the molecular mass ,
Hence ,
n = w / m
n = moles ,
w = given mass ,
m = molecular mass .
From the question ,
m = 121 g/mol
n = 0.05 mol ( calculated above )
The mass of tri base can be calculated by using the above equation ,
n = w / m
Putting the respective values ,
0.05 mol = w / 121 g/mol
w = 0.05 mol * 121 g/mol
w = 6.05 g
58.7 %
Please correct me if I’m wrong. :)
The intermolecular interactions found between pentane molecules are London-Dispersion Forces.
Explaination:
Step 1:
Instantaneous Dipole: As the pentane molecule is non polar in nature and the electron density on each molecule is symmetrical. When this symmetrical molecule approaches second symmetrical molecule there disturbance is caused due to repulsion between electrons. Due to repulsion the electrons changes there position and for a small period of time an instantaneous dipole is produced on pentane molecule.
Step 2:
Induced Dipole: The dipole produced in step one when approaches another symmetrical pentane molecule, the partial positive part (low electron density site) attracts the electron from symmetrical pentane and induces polarity in it.
In this way the process repeats and interactions are developed between the non polar pentane molecules.
