Estudo do pH
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Brendo S
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 10 pts
Um xampu tem pH = 8. Podemos concluir que
o xampu é neutro e possui [H⁺] = 10⁻⁷
o xampu é ácido e possui [H⁺] = 10⁻6
o xampu é ácido e possui [H⁺] = 10⁻⁸
o xampu é básico e possui [H⁺] = 10⁻⁸
2.
MULTIPLE CHOICE QUESTION
2 mins • 20 pts
Admita que a chuva não poluída tenha pH = 6 e que uma chuva ácida tenha pH = 4. Analisando a relação abaixo determine o valor de x
10
100
1000
10000
3.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Com base na tabela o pH da Coca-Cola, da água do mar e da água com gás são respectivamente
3; 6 e 8
3; 8 e 4
11; 8 e 4
11; 6 e 8
4.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Qual o pH de uma solução cuja concentração hidrogeniônica é igual a 0,0003 mol/L? Dado log 3 = 0,48
4,38
3,48
4,52
3,52
5.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
O pH de um meio cuja concentração hidroxiliônica é 0,000 000 05 mol/L é: Dado log 5 = 0,7
5,3
6,7
7,3
8
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Se o pH de uma substância é igual a 9, quanto vale seu pOH?
11
8
5
7.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
O pH e pOH de determinada substância cuja concentração hidrogeniônica é 0,00000001 mol/L são respectivamente
8 e 6
9 e 5
6 e 8
5 e 9
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