Answer:
The answer to the question is
Chlorine Cl₂
Explanation:
Graham's Law of effusion states that the rate of effusion of a gas is inversely proportional to the square root of the molar mass
0.238 =
Therefore M₁ = 4÷0.238² = 70.61
Hence the mass of the gas is 70.61, that is X₂ = 70.61 or the molar mass of the element X = 70.61÷2 = 35.308 ≅35.453 Hence the gas is chlorine Cl₂
Answer:
The correct answer is option d.
Explanation:
Concentration of hydrogen ions =
The pH of the solution is given by :
The relation between the pH and pOH is given by :
pH + pOH = 14
pOH = 14 - pH
The pOH of the substance is 5.54.
The son of a weaver, Dalton's major contribution to the field of chemistry is his atomic theory proposed in 1803.
Answer: Bohr's atomic model is the basis for chemistry because it explains the chemistry of atom.
Explanation: This model states that the electrons having fixed energy and they move around the nucleus of an atom in a confined path or orbit. It also explains that in the ground state, the energy of the electron is very low, and it is close to the nucleus. And after gaining energy, the electron gets excited to higher energy level. It concludes that electrons can able to shifts their orbit by losing or gaining energy.
Answer:
1atm
Explanation:
Atm is the standard atmospheric pressure