
Obecná chemie 51-100
Quiz
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Life Skills
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University
•
Practice Problem
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Easy
Plzen Chemie
Used 2+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaká je skuteăná hmotnost jednoho atomu 1S?
2,66 x 10-23 g
5,31 x 10-23 g
7,97 × 10-23 g
1,06 × 10-22 g
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakou hmotnost má jedna molekula vody?
6,023 × 10-23g
18 × 10-23 g
1,016 × 10-23 g
3,0 x 10-23 g
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bude-li navázeno v gramech takové mnozství látky, které odpovídá její relativní hmotnosti, bude této látky práve:
1 mol
6,023 x 1023 mol
1/12 mol
0,166 mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaké je látkové noství 2 dm' vody?
111,1 mol
222,2 mol
2 litry
2000 g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bude-li navázeno 18,015g H2O, pak toto moství predstavuje:
6,023 × 1023 molekul H2O
108,49 × 1023 molekul H2O
0,056 mol H2O
2,99 mol H2O
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakou hmotnost má 2,5 mol NaOH (M = 40,0 g/mol)?
150 g
100 g
16 g
160 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakou hmotnost má 1,2 mmol AgNOs (M = 170,0 g/mol)?
20,4 mg
141,7 mg
0,204 g
0,014 g
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