GRANDEZAS QUÍMICAS
Quiz
•
Chemistry
•
Professional Development
•
Practice Problem
•
Hard
MARLENE VIEIRA
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é "mol"?
Unidade básica da matéria
Unidade básica da química
Unidade básica do plasma
Unidade básica das proteínas
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O número de moléculas de açúcar (C6H12O6) em um mol?
24 moléculas
180 moléculas
180 g
6.02 x 1023 moléculas
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Número de átomos em 6,00 g de carbono? Dado: C=12g/mol
1.20x1024 átomos de C
6.02x1023 átomos de C
3.01x1023 átomos de C
1.50x1023 átomos de C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a unidade para massa molar?
gramas
u
gramas por mol
litros
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O número total de moléculas em 444 g de CaCl2 (111 g/mol)
0,25 X 1023 átomos
4,0 X 1024 moléculas
2,0 X 1023 moléculas
2,4 X 1024 moléculas
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a massa de 0,2 mol de Al? (27g/mol)
27 g
54 g
5,4 g
2,7 g
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quantos mols há em 112 litros de Cl2 nas CNTP?
3 mol
4 mol
5 mol
6 mol
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