
Výpočty pH
Quiz
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
Stera Stera
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaké je pH roztoku, ve kterém je látková koncentracec(OH–) = 10–2 mol dm–3:
2
13
12
11
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaké je pH roztoku, ve kterém je látková koncentracec(OH–) = 10–5 mol dm–3:
5
10
9
12
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaké je pH roztoku, ve kterém je látková koncentrace c(H3O+) = 10–2 mol dm–3:
3
2
10^(-12) mol/dm^3
12
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaká je látková koncentrace c(H3O+) v roztoku, kde c(OH–) = 10–10 mol dm–3:
0,0004 mol dm–3
10–10mol dm–3
10–7mol dm–3
0,0001 mol dm–3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaké je pH roztoku kyseliny sírové, je-li látková koncentrace kyseliny sírové vtomto roztoku 0,005 mol dm–3?
3
4
2
5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaká je látková koncentrace c(H3O+) v roztoku, kde c(OH–) = 10–5 mol dm–3:
10–9mol dm–3
10–5mol dm–3
0,00005 mol dm–3
0,5 mol dm–3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Je-li koncentrace OH- iontů v roztoku silné báze c(OH–) = 1 · 10–8 mol dm–3, jaká je reakce tohoto roztoku a jeho pH?
pH = 6,0; roztok je kyselý
pH = 6,0; roztok je zásaditý
pH = 8,0; roztok je zásaditý
pH = 8,0; roztok je kyselý
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