The answer is a liquid and solid
Answer:
Yield of CO₂ = 79.1 %
Explanation:
This is the balanced reaction:
CaCO₃ (s) + 2HCl (aq) → CO₂ (g) + CaCl₂ (aq) + H₂O (l)
As the hydrochloric acid is in excess, the limiting reactant is the CaCO₃.
Let's convert the mass to moles
10.9 g / 100.08 g/mol = 0.109 moles
Ratio is 1:1, so 0.109 moles of CaCO₃ will produce the same amount of CO₂.
Let's determine the mass
0.109 moles of CO₂ . 44 g/mol = 4.79 g
Now, we can determine the yield
(yeild produced / theoretical yield) . 100 =
(3.79 / 4.79) . 100 = 79.1%
Answer:
Keq = 3
Explanation:
The reaction can be expressed as:
G6P → F8P
Keq = [F8P] / [G6P]
Because there are no products at the beginning, and there are no intermediates in this reaction, we can express the concentrations of the substances as followed:
- At the beginning of the reaction:
[G6P] = 0.8 M
[F8P] = 0.0 M
- At equilibrium, some G6P has turned into F8P, so <u>its concentration can be expressed as a substraction of its original value</u>:
[G6P] = 0.8 M - x
[F8P] = x = 0.6 M
We can rewrite [G6P]:
[G6P] = 0.8 M - 0.6 M = 0.2 M
Now that we know the values of [G6P] and [F8P] we can calculate Keq:
Keq = [F8P] / [G6P] = 0.6 / 0.2 = 3
Answer:
hope it helps...
Explanation:
A material composed of two or more substances is a mixture. ... A substance that can be broken down into chemically simpler components (because it has more than one element) is a compound. For example, water is a compound composed of the elements hydrogen and oxygen.