
Stężenia procentowe II
Authored by Piotr Rzepkowski
Chemistry
4th - 5th Grade
Used 348+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Określenie "roztwór o stężeniu 25%" oznacza, że 25 g substancji przypada na
100 g wody
100 g roztworu
1 dm3 wody
1 dm3 roztworu
2.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Zaznacz sposoby na zwiększenie stężenia roztworu
dosypanie substancji
dolanie wody
odparowanie wody
odlanie roztworu
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Po rozpuszczeniu 15 g soli w 65 g wody uzyskamy roztwór o stężeniu równym
17%
18,75%
23,08%
0,19%
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
W ilu gramach wody należy rozpuścić 22 g cukru, aby uzyskać roztwór 48-procentowy?
23,8 g
45,8 g
10,56 g
26 g
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Przygotowano 80 cm3 60-procentowego roztworu o gęstości równej 1,04 g/cm3. Oblicz masę substancji, jaka znajduje się w tym roztworze.
ok. 23 g
ok. 83 g
ok. 48 g
ok. 50 g
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ile waży roztwór 14%, w którym rozpuszczono 1,8 g soli?
12,2 g
12,8 g
0,25 g
25,2 g
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ile gramów jodku potasu rozpuszczono w wodzie, jeśli otrzymano w ten sposób 4 g 48-procentowego roztworu?
4,48 g
8,3 g
44 g
1,92 g
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