Answer:
530.835 g
Explanation:
First we convert 244 g of benzoic acid (C₇H₆O₂) to moles, using its molar mass:
- 244 g benzoic acid ÷ 122.12 g/mol = 2.00 moles benzoic acid
Theoretically,<em> one mol of ethyl benzene would produce one mol of benzoic acid</em>. But the experimental yield tells us that one mol of ethyl benzene will produce only 0.4 moles of benzoic acid.
With the above information in mind we convert 2.00 moles of benzoic acid into moles of ethyl benzene:
- 2.00 moles benzoic acid * = 5.00 moles ethyl benzene
Finally we <u>convert moles of ethyl benzene </u>(C₈H₁₀)<u> into grams</u>, using its <em>molar mass</em>:
- 5.00 moles ethyl benzene * 106.167 g/mol = 530.835 g ethyl benzene
Answer:
77.14 atm of pressure should be of an acetylene in the tank.
Explanation:
According to reaction, 2 moles of acetylene reacts with 5 moles of oxygen.
Moles of oxygen=
Moles of acetylene =
Volume of large tank with oxygen gas,
Pressure of the oxygen gas inside the tank =
..[1]
Volume of small tank with acetylene gas ,
Pressure of the acetylene gas inside the tank =
..[2]
Considering both the gases having same temperature T, [1]=[2]
77.14 atm of pressure should be of an acetylene in the tank.
Answer:
The first option
Explanation:
H2O's notation tells us the compound has 2 hydrogen atoms and 1 oxygen atom.
Answer:Living systems are open self-organizing life forms that interact with their environment.
Explanation: GOOGLE
Answer:
3Zn(s) + 2FeCl₃(aq) → 2Fe(s) + 3ZnCl₂ (aq)
Explanation:
This is a redox reaction where solid iron is formed by the reaction of Zn and Iron(III) chloride. We called redox because the iron is reduced and the zinc is oxidized.
The reactants are: Zn(s) and FeCl₃(aq)
The products are: ZnCl₂(aq) and Fe(s)
Zn(s) → Zn²⁺(aq) + 2e⁻ Oxidation
Fe³⁺(aq) + 3e⁻ → Fe(s) Reduction
The e- are unballanced so we multiply the half reactions:
(Zn(s) → Zn²⁺(aq) + 2e⁻) . 3 → 3Zn(s) → 3Zn²⁺(aq) + 6e⁻
(Fe³⁺(aq) + 3e⁻ → Fe(s)) . 2 → 2Fe³⁺(aq) + 6e⁻ → 2Fe(s)
When we sum the half reactions, the electrons can be cancelled:
3Zn(s) + 2Fe³⁺(aq) + 6e⁻ → 2Fe(s) + 3Zn²⁺(aq) + 6e⁻
Balanced equation: 3Zn(s) + 2FeCl₃(aq) → 2Fe(s) + 3ZnCl₂ (aq)