Answer:
71.372 g or 0.7 moles
Explanation:
We are given;
- Moles of Aluminium is 1.40 mol
- Moles of Oxygen 1.35 mol
We are required to determine the theoretical yield of Aluminium oxide
The equation for the reaction between Aluminium and Oxygen is given by;
4Al(s) + 3O₂(g) → 2Al₂O₃(s)
From the equation 4 moles Al reacts with 3 moles of oxygen to yield 2 moles of Aluminium oxide.
Therefore;
1.4 moles of Al will require 1.05 moles (1.4 × 3/4) of oxygen
1.35 moles of Oxygen will require 1.8 moles (1.35 × 4/3) of Aluminium
Therefore, Aluminium is the rate limiting reagent in the reaction while Oxygen is the excess reactant.
4 moles of aluminium reacts to generate 2 moles aluminium oxide.
Therefore;
Mole ratio Al : Al₂O₃ is 4 : 2
Thus;
Moles of Al₂O₃ = Moles of Al × 0.5
= 1.4 moles × 0.5
= 0.7 moles
But; 1 mole of Al₂O₃ = 101.96 g/mol
Thus;
Theoretical mass of Al₂O₃ = 0.7 moles × 101.96 g/mol
= 71.372 g
Answer:
12 amu or 12 g.
Explanation:
One mole of 12C = one 12c atom. The mass of one carbon-12 atom is 12.000 amu.
Answer:
2(H2) + 1(O2) = 2 (H2O) is the balanced equation
They are the remnants of the inner planets' accretion.
Explanation:
The asteroid belt formed from the remnants of the inner planets accretion. This is very correct according to the solar nebular hypothesis.
- The asteroid belt divides the rocky inner planets from the outer gaseous ones.
- It formed when the solar nebular, an interstellar gas cloud began to differentiate.
- The gravitational pull from the sun pulled the rocky masses closer.
- The remnants straddles between the gas giants and the inner planets.
- Materials in the asteroid belt are both gaseous and rocky in nature.
learn more:
Planets brainly.com/question/2887352
Asteroid brainly.com/question/12785992
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Heat is require for a high number of collisions.