Vzorečky a veličiny v chemii
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Medium
Martin Uchnár
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
hmotnosti atomu
rychlosti reakce
molární koncentrace
látkového množství
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Základní jednotkou látkového množství je:
milimol
mol
kg
g/mol
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hustotu vypočítáme podle vzorce:
4.
MULTIPLE CHOICE QUESTION
45 sec • 4 pts
Hmotnost roztoku je tvořena:
Pouze hmotností rozpouštědla
Součtem hmotností rozpuštěné látky a rozpouštědla
Pouze hmotností rozpuštěné látky
Rozdílem hmotností rozpouštědla a rozpuštěné látky
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jednotkou molární koncentrace je:
mol/l
g/l
g/mol
hmotnostní zlomek
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Bylo rozpuštěno 15 g soli za vzniku 115 g roztoku. Jaký je jeho hmotnostní zlomek v procentech?
15 %
11,5 %
7,67 %
13 %
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hodnota molárního objemu plynu za normálních podmínek je:
22,41 l/mol
1 l/mol
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