Moles y número de moléculas

Quiz
•
Science, Chemistry
•
1st - 10th Grade
•
Hard
Maria Saravia
Used 18+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuántas moléculas de H20 hay en 90g de agua?
18
5
3,11x10^24
5x10^23
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántos moles de CO2 hay en 55 gramos de CO2?
Sabiendo que la masa atómica del carbono es 12 y del oxígeno es 16.
1.25 moles de CO2
44 moles de CO2
12.5 moles de CO2
25 moles de CO2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántas moléculas de metano hay en 10 moles de dicho compuesto?
6,022x10^23
6,022x10^24
16
9,6352x10^24
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántos moles aproximadamente hay en 100 g de aspirina (C9H8O4)? Si la masa molecular es de 180,2 uma.
0,86 moles de aspirina
0,54 moles de aspirina
0,55 moles de aspirina
0,46 moles de aspirina
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuánto es la masa molar del ácido sulfúrico(H2SO4)?
Datos: Masa atómica: H=1 uma; O=16 uma ; S=32 uma
98 uma
98 g/mol
5,90156x10^25
6,022x10^23
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántas moles de aluminio hay en 135 gramos de dicho metal? Si se sabe que la masa atómica del aluminio es 27 uma.
7 moles
135 moles
3 moles
5 moles
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuántas moléculas de propano aproximadamente hay en 100 gramos de dicho gas? Sabiendo que la masa molar del propano es de 44 g/mol.
7,3x10^-25
7,3x10^23
7,2x10^25
7,3x10^-23
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