Stężenia molowe II
Quiz
•
Chemistry
•
4th - 5th Grade
•
Practice Problem
•
Medium
Piotr Rzepkowski
Used 56+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jaką masę posiada 0,275 dm3 roztworu o gęstości 1,41 g/cm3?
0,387 g
5,127 g
387,7 g
38,7 g
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
"Roztwór 0,25-molowy" oznacza, że w tym roztworze 0,25 mola substancji przypada na
1000 g wody
1000 g roztworu
1 dm3 wody
1 dm3 roztworu
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Które czynności doprowadzą do zwiększenia stężenia molowego?
odparowanie wody
odlanie roztworu
dolanie wody
dosypanie substancji
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jaką objętość ma 4-molowy roztwór, w którym znajdują się 2 g rozpuszczonego wodorotlenku sodu?
0,0125 dm3
0,25 cm3
0,2 dm2
0,5 dm3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ile gramów fluorku wapnia rozpuszczono uzyskując 200 cm3 0,4-molowego roztworu?
0,08 g
6,24 g
32 g
20 g
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ile moli substancji zawiera 243 g roztworu 0,4-molowego o gęstości 0,955 g/cm3?
1,6 mola
0,09 mola
0,2 mola
0,1 mola
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
W jakim stosunku objętościowym należy zmieszać ze sobą roztwór 8-molowy z roztworem 2-molowym, aby uzyskać roztwór 5-molowy?
1:1
1:2
3:1
3:2
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