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Vera_Pavlovna [14]
3 years ago
7

Data for CH3COOH(l) + C2H5OH(l) CH3COOC2H5(l) + H2O(l) balance were obtained at 100. The initial concentrations of the reagents

are indicated in columns 1 and 2 of the table below and the CH3COOC2H5 concentrations in equilibrium are given in column 3. Calculate H2O and determine the value of KC

Chemistry
1 answer:
Sphinxa [80]3 years ago
3 0

Answer:

Kc = 3.94

Explanation:

CH₃COOH(g) + C₂H₅OH(g) → CH₃COOC₂H₅(g) + H₂O(g)

Liquids aren't included in the equilibrium constant, but at 100°C, all four compounds are a gas.  So the equilibrium equation is:

Kc = [CH₃COOC₂H₅] [H₂O] / ([CH₃COOH] [C₂H₅OH])

Set up an ICE table for each row and calculate the value of Kc.  Then average the results.  (See picture.)

Kc ≈ (3.919 + 4.012 + 3.902) / 3

Kc ≈ 3.94

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Write the condensed electron configurations for the Ca atom. Express your answer in condensed form as a series of orbitals. For
umka21 [38]

Answer:

[Ar] 4s²

Explanation:

Ca is the symbol for Calcium. It is the 20th element and it has 20 electrons.

The full electronic configuration for calcium is given as;

1s²2s²2p⁶3s²3p⁶4s²

The condensed electronic configuration is given as;

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6 0
3 years ago
What are some sources of non-point source water pollution?
kirza4 [7]

Answer:

Explanation:

Excess fertilizers, herbicides and insecticides from agricultural lands and residential areas.

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3 0
3 years ago
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The first electron shell of an atom is complete when it has ___ electrons and the second electron shell is complete when it has
elena-s [515]

Answer:

2, 8, 8

Explanation:

The first electron shell always has 2 electrons when it is complete. The second electron shell and 3rd shell can hold 8 when completed.

5 0
2 years ago
Question 2: Naming Hydrocarbons
oksian1 [2.3K]

Answer:

1) 1-Pentyne

2) But-2-yne

3) Ethyne

4) 1-Propyne

5) 1-Butyne

6) Pent-2-yne

Explanation:

1) The number of carbon on the longest chain = 5, (two carbon atoms between the triple bond) therefore the prefix is <em>pen-</em>

The functional group is the triple bond on the first carbon with the suffix <em>-yne</em>

The name of the compound is 1-Pentyne

2) There are 4 carbon atoms on the longest chain, therefore, the prefix is <em>but-</em>

The location of the triple bond functional group (suffix; <em>-yne</em>) is on the second carbon atom

Therefore, the name of the compound is But-2-yne

3) The triple bond functional group is between the only two carbon atoms, therefore, the name is Ethyne

4) The number of carbon atoms = 3, with a prefix <em>prop-</em>, and the functional group on the first carbon atom on the longest chain is the triple bond, with suffix <em>-yne</em>

Therefore, the name of the compound is 1-Propyne

5) The number of carbon atoms on the longest chain = 4, the prefix is <em>but-</em>

The location of the triple bond functional group (suffix<em> -yne</em>) is on the first carbon atom

Therefore, the name is 1-Butyne

6) The number of carbon atoms on the longest chain = 5, the prefix of the compound is <em>pen-</em>

The location of the triple bond functional group (suffix; <em>-yne</em>) is on the second carbon atom, therefore;

The name of the compound is Pent-2-yne

4 0
3 years ago
Describe the difference between the terms "mass number” and “atomic mass”.
mrs_skeptik [129]

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Explanation:

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3 years ago
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