
Massa Molar e Conceitos de Mol
Interactive Video
•
Chemistry, Science
•
8th - 12th Grade
•
Practice Problem
•
Hard
Ethan Morris
Used 1+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que o termo 'mol' representa no contexto da química?
Uma unidade de temperatura
Uma quantidade de matéria
Uma medida de energia
Uma unidade de volume
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o número de Avogadro?
6,02 x 10^23
1,61 x 10^23
3,14 x 10^23
9,81 x 10^23
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quando falamos de 1 mol de água, a que entidade estamos nos referindo?
Átomos
Moléculas
Elétrons
Íons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a massa molar de uma substância?
A massa de um único átomo
A massa de 1 litro de uma substância
A massa de uma única molécula
A massa de 1 mol de uma substância
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se calcula a massa molar de H2SO4?
Multiplicando a massa atômica do hidrogênio por 4
Dividindo a massa atômica do enxofre por 2
Subtraindo a massa atômica do oxigênio da do hidrogênio
Somando as massas atômicas de todos os átomos na molécula
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a massa molar do H2SO4?
16 g/mol
32 g/mol
64 g/mol
98 g/mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a massa atômica do alumínio usada no cálculo do carbonato de alumínio?
16
23
27
32
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