Voda, kisline in baze, pufri Flashcards

1
Q

lastnosti vode

A

lahko deluje kot kislina ali baza
ima visoko tališče
ima nizko električno prevodnost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

molekula vode je sestavljena iz:

A

iz dveh atomov vodika in atoma kisika

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

obkroži pravilne trditve:

A

voda lahko deluje kot kislina ali baza
snovi, ki se raztapljajo v vodi imenujemo hidrofilne
pH je merilo kislosti oziroma bazičnosti raztopin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

molekula vode je:

A

navzven nevtralna
polarna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

v vodi so:

A

dobro topne organske makromolekule, ki lahko tvorijo vodikove vezi
slabo topne nepolarne organske makromolekule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

vodikove vezi med molekulami vodi vplivajo na njene lastnosti. voda ima:

A

veliko viskoznost, visoko vrelišče

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

bazičnost vodne raztopine se izraža:

A

s pH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

kislost vodne raztopine se izraža:

A

s pH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

snovi, ki vzdržujejo pH se imenujejo:

A

pufri

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

če se pH krvi zniža pod 7,35 govorimo o:

A

acidozi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

če se pH krvi poviša nad 7,45 govorimo o:

A

alkalozi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

primeri fizioloških pufrov so:

A

bikarbonatni pufer
fosfatni pufer
raztopina proteinov

How well did you know this?
1
Not at all
2
3
4
5
Perfectly