Answer:
11.92 g ≅ 12.0 g.
Explanation:
- The balanced equation of the reaction is: CO + 2H₂ → CH₃OH.
- The stichiometry shows that 1.0 mole of CO reacts with 2.0 moles of H₂ to produce 1.0 mole of CH₃OH.
- Now, we need to calculate the no. of moles (n) of the reacted CO and H₂ using the relation: <em>n = mass / molar mass.</em>
- No. of moles of CO = mass / molar mass = (14.0 g) / (28.01 g/mol) = 0.4999 mol ≅ 0.5 mol.
- No. of moles of H₂ = mass / molar mass = (1.5 g) / (2.015 g/mol) = 0.7444 mol.
- As showed in the balanced equation: every 1.0 mole of CO needs 2.0 moles of hydrogen to react completely.
- So, for the given data H₂ gas (0.7444 mol) will be the limiting reactant that reacts completely with (0.372 mol) of CO which is in excess (0.5 mol).
- We can get the no. of moles of CH₃OH produced.
<u><em>Using cross multiplication:</em></u>
2 moles of H₂ produce → 1.0 mole of CH₃OH, from the stichiometry.
0.7444 moles of H₂ produce → ??? mole of CH₃OH.
- The no. of moles of CH₃OH produced = (0.7444 moles)(1.0 mole) / (2 moles) = 0.372 mol.
- The amount of CH₃OH produced in grams (mass) = n x molar mass = (0.372 mol) (32.04 g/mol) = 11.92 g ≅ 12.0 g.
When calcium carbonate is heated, it breaks down to form calcium oxide and carbon dioxide.
Thermal decomposition is the process in which heat is required.
It is also known as thermolysis.
It is processed in which a compound breaks into two or more products when the heat is supplied.
This reaction is used for the production of oxygen.
This reaction is also used for production of acidic as well as basic oxides.
CaCO3 on thermal decomposition gives:
CaCO3→CaO+CO2
CaO→ Basic oxide.
CO2→ Acidic oxide.
Answer:
BF3
Explanation:
BF3 possesses an open sextet. This implies that the octet around the central atom is incomplete. As a result of this, BF3 will function as an electrophile rather than as a nucleophile.
Hence of all the compounds listed in the options, BF3 is the least nucleophillic.
For adults, 400-600 milligrams taken as a single dose
Answer:
The answer is Potential energy