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Lom Unit 1 > Lom Unit 1 > Flashcards

Lom Unit 1 Flashcards

1
Q

Sp3

A

Number of bonds - 4
Geometry shape - tetrahedral

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2
Q

Sp2

A

Number of bonds - 3
Geometry shape - trigonal

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3
Q

Sp

A

Number of bonds - 2
Geometry shape - linear

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4
Q

What is one property of an Sp3 atom?

A

All four groups attached are different, the two isomers are different compounds and are chiral.
The separate chiral isomers are a pair of enantiomers

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5
Q

What are isomers?

A

One of two or more compounds which have same chemical formula but different arrangement of atoms

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6
Q

What is a chiral centre?

A

An atom that has 4 different atoms or groups attached to it

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7
Q

What is an enantiomer?

A

Each of a pair of molecules that are mirror images of each other

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8
Q

What is R?

A

R is clockwise

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9
Q

What is S?

A

S is anti-clockwise

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10
Q

What are chiral diastereoisomers?

A

Only found in molecules with multiple chiral centres.
Absolute stereochemistry is the same at some centres but must differ in one

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11
Q

What charge do electronegative atoms carry?

A

A small negative charge

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12
Q

What charge do carbon atoms carry?

A

A slightly positive charge

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13
Q

What are heterocyclic rings?

A

They look like benzyl rings
Are aromatic, hydrophobic and polar
They are amphiphilic

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14
Q

What is meant by thermodynamics?

A

Thermodynamics is about energy, it’s flow and it’s transformation from one form into another form

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15
Q

What are the three types of energy?

A

Potential energy - stored energy (gravitational)
Kinetic energy - Energy of motion
Internal energy - sum of kinetic and potential energies of all particles that make a system

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16
Q

What is a system?

A

A region of universe that we direct attention to

17
Q

What is a surrounding?

A

Everything outside a system

18
Q

What is a boundary

A

Is a wall that separates a system from its surroundings

19
Q

What is zeroth law of thermodynamics?

A

If two systems are in thermodynamic equilibrium with a third system, the two original systems are also in thermal equilibrium with each other

20
Q

What is the first law of thermodynamics?

A

Energy can be converted from one form to another with the interaction of heat and work and internal energy.
Can’t be created or destroyed

21
Q

What is the second law of thermodynamics?

A

Entropy- spontaneous process

Lom Unit 1 (1 decks)

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