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Liula [17]
3 years ago
6

4. Keeping VSEPR model in mind, draw the Lewis Structures for ethanol (C2H5OH) and dimethyl ether (CH3OCH3). Determine the elect

ron pair geometry and molecular geometry around the oxygen atom in each.

Chemistry
2 answers:
nikitadnepr [17]3 years ago
7 0

Answer:

Both the oxygen atom in both compounds have a Tetrahedral bent geometry.

Explanation:

In dimethyl ether and ethanol each carbon has four valence electrons. Oxygen has six valence electrons and hydrogen has one valence electron.

The electron pair and molecular geometry around both the oxygen atom in each are Tetrahedral bent.

jarptica [38.1K]3 years ago
5 0

Answer:

Both ethanol and diethyl ether have tetrahedral geometry.

Explanation:

VSEPR Rules are

1. Identify the central atom.

2. Count its valence electrons.

3. Add one electron for each bonding atom.

4. Add or subtract electrons for charge

5. Divide the total of these by 2 to find the total.

number of electron pairs.

6. Use this number to predict the shape.

The attachment shows their Lewis's dot structure.

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Ethylene (C2H4) is the starting material for the preparation of polyethylene. Although typically made during the processing of p
Solnce55 [7]

Answer:

1.17 grams

Explanation:

Let's consider the balanced equation for the combustion of ethylene.

C₂H₄(g) + 3 O₂(g) → 2 CO₂(g) + 2 H₂O(l)

We can establish the following relations:

  • 1411 kJ are released (-1411 kJ) when 1 mole of C₂H₄ burns.
  • The molar mass of C₂H₄ is 28.05 g/mol.

The grams of C₂H₄ burned to give 59.0 kJ of heat (q = -59.0 kJ) is:

-59.0kJ.\frac{1molC_{2}H_{4}}{-1411kJ} .\frac{28.05gC_{2}H_{4}}{1molC_{2}H_{4}} =1.17gC_{2}H_{4}

8 0
3 years ago
If you add a chunk of zinc to a beaker of acid and zinc shavings to another beaker of acid, the sample with the zinc shavings wi
Svet_ta [14]

Answer:

The answer to your question is: letter C

Explanation:

The only difference between the samples of Zinc is their presentation, one is a chunk of zinc and the other one is shavings.

1) Catalyst                              This option is incorrect because the description

                                                do not mention anything about catalyst.    

2) Nature of the reaction      The nature of the reaction is the same.

3) Surface area                       This is the right answer because in the chunk

                                                 there is less surface area than in the shavings.

4) Temperature                       It is not mention anything about temperature in

                                                the description.

8 0
4 years ago
Warm and cold fronts are formed by the movement of different air masses.
vekshin1
That is true because the warm air goes up and the cold air comes down 
3 0
4 years ago
Help ASAP I need help on this one?!!!!
Veseljchak [2.6K]

Answer:

segment 4

Explanation:

Its segment 4 because even though they only traveled 55(km) its only been 1 hour. Every other one took ether 1 hour and 5 minutes or 2 hours.(this is my honest opinion im sorry if its wrong)

7 0
3 years ago
A chemist determined by measurements that moles of calcium sulfide participate in a chemical reaction. Calculate the mass of cal
Harman [31]

corrected question:

A chemist determined by measurements that 0.03 moles of calcium sulfide participate in a chemical reaction. Calculate the mass of calcium sulfide that participates

Answer:

Explanation:

number of moles of CaS

molar mass of CaS = 40+32 = 72g/mol

number  of moles = mass/ molar mass

mass = number of moles * molar mass

mass = 0.03 *72

mass of calcium sulfide = 2.16g

6 0
3 years ago
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