Chapter 1- Water And Polarity Flashcards

1
Q

Our blood is what and due to what

A

It is aq and is 70% water

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2
Q

The ________ are formed due to water

A

Shape of molecules

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3
Q

_______ participates in _______ reactions.

A

Water; chemical

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4
Q

Structure of water

A

Watch the mol lec

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5
Q

Water is made of ______

A

2 hydrogens and 1 oxygen.

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6
Q

The structure of water causes ________ because opp ends have ____________ therefore causing diff _________ due to diff ________ of ________

A

Polarity; diff charges; electronegativity; attraction; electrons

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7
Q

Delta means _______ and ion means ______

A

Partial negative or positive; fully pos or neg.

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8
Q

A ________ molecule forms ____ binds to dissolve in water.

A

Polar; h2

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9
Q

Hydrogen bonds are _____ and are _____ of covalent bond. Why is water so strong if its made of hydrogen bonds?

A

Weak; 1/20. Because there are many of them

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10
Q

Why do diff water molecules form hyd bonds with each other?

A

Because h bonds form between o and h. SNOF

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11
Q

Why does water have bent shape?

A

Its polar causing diff attractions of electrons causing repellation of them due to partial pos or neg charges on ends.

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12
Q

Where is covalent bond and where is hydrogen bond

A

Water; diff water molecules.

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13
Q

1 water mol can form ___ hydrogen bonds due to _____

A

4; oxygen has lone pair of electroms

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14
Q

What is hydrophilic and what forms covalent or hydrogen bonds and what happens

A

Loving water; ions form covalent coz they seperate and polar molecules form hydrogen bonds within water after seperatijg and dissolving in watef

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15
Q

Polar molecules have _________

A

OH and NH and SH which donate electrons whereas oxygen accepts.

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16
Q

What is hydrophobic and what group and whats with the chain

A

Water hating and CH usually and the longer t(e chain of trigylcerides for example the harder it is to dissolve

17
Q

What are amphioathic molecules and what do they consist

A

They are both loving and hating hating water and consist both of non polar and polar molecules for example phospholipids.

18
Q

Water dissociates into what and are they equal

A

Into H+ and OH- and yes

19
Q

What is the concentration of H+ in pure water

A

1*10^-7

20
Q

What is Ph and whats neutral or basic or acidic.

A

-log*conc of H+. The higher the H+ conc the lower the Ph. 7 is neutral and below it is acidic and above is basic.

21
Q

Below 7 means more H+ or less and above means whats

A

Below 7 means more H + and above means less h+ and more OH-.

22
Q

A 10x conc diff means what

A

A 1 unit change in the Ph

23
Q

Acids _________ and bases _______ them

A

Donates lrotons; bases accepts them

24
Q

Strong acids _______ completel6py and weak ones dont

A

Dissociate

25
Q

What are the major acids produced in the body

A

Hcl; sulfuric; phosphoric and ketone bodies.

26
Q

__________ ysually make the blood acidic and are anindicator od diabetes.

A

Ketone bodies

27
Q

(H+) (oh-) =

A

10^-14

28
Q

Wha5 are some facts

A

Biological fluids are 6-8
Internal ph of cells is 7
Blood is. 7.37-7.43

29
Q

Major bufffers and how they work

A

Bicarbonate and Hb. By being added to lungs and kidney mechnisms.