
Massa molar JMB
Authored by Fernando Pires
Chemistry
1st - 8th Grade
Used 74+ times

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16 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
5 mins • 1 pt
Número de átomos em 6,00 g de carbono?
1.20x1024 átomos de C
6.02x1023 átomos de C
3.01x1023 átomos de C
1.50x1023 átomos de C
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Quantos átomos há em 3x1022 átomos de magnésio?
0.05 mol
1,81 x 1046 mol
5.00 x 1021 mol
5 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um átomo de flúor tem massa atômica 19 , sua massa molar é ____
19 mols.
19 kg.
impossível saber.
19 g/mol.
6.
MULTIPLE CHOICE QUESTION
30 sec • 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
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual destes pesa mais ?
um grama de átomos de nitrogênio.
um mol de césio.
um mol de água.
uma molécula de H2SO4.
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