Stehiometrija zadaci vežbanje
Quiz
•
Chemistry
•
10th - 11th Grade
•
Practice Problem
•
Hard
Branka Kujovic
Used 43+ times
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Korozija gvožđa predstavljena je jednačinom
4Fe + 3O2 --> 2 Fe2O3
ako 1,45 mol gvožđa reaguje koliko mol Fe2O3 rđe nastaje ?
0.483 mol
0.725 mol
0.97 mol
1.45 mol
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Data je jednačina reakcije
C2H4 + 3 O2 --> 2 CO2 + H2O
ako 5.5 mol CO2 nastaje ,koliko je mola O2 reagovalo?
3.6 mol
6.8 mol
8.2 mol
13.7 mol
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jednačinom je predstavljena reaakcija
4NH3 + 7 O2 --> 4 NO2 + 6 H2O
koliko mola amonijaka daje 11,9 mola vode?
4.76 mol
11.9 mol
7.93 mol
5.95 mol
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Data je jednačina reakcije
4NH3 + 7 O2 --> 4 NO2 + 6 H2O
Koliko molekula NO2 nastaje iz 5,38 mola amonijaka ako je reagovao potpuno ?
21.52
6.48 x 1024
3.24 x 1024
247
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Za datu jednačinu reakcije
3Cl2 + 6NaOH -> 5NaCl + NaClO3 + 3H2O
Koliko molekula hlora je potrebno da reaguje stehiometrijski sa 13,3 g NaOH?
1.00 mol Cl2
0.333 mol Cl2
0.67 mol Cl2
0.166 mol Cl2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Data je jednačina reakcije
2Cl2 + 4NaOH -> 3NaCl + NaClO2 + 2H2O
Koliko mol Cl2 stehiometrijski reaguje sa 11.6 g NaOH?
0.58 mol Cl2
0.290 mol Cl2
0.193 mol Cl2
0.073 mol Cl2
0.145 mol Cl2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Kolika masa CO2 nastaje iz 29.9 g butana koji sagoreva sa kiseonikom i daje reakciju?
2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O
181.1 g CO2
90.6 g CO2
11.32 g CO2
119.6 g CO2
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