
Stężenie procentowe
Authored by klasa piata
Chemistry
7th Grade
Used 32+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz stężenie procentowe roztworu , otrzymanego po wsypaniu 4 g cukru do 16 g wody.
25%
4%
40%
20%
Answer explanation
Obliczając stężenie roztworu należy dodać masy :substancji i wody
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaka będzie ilość soli po odparowaniu 300g roztworu 5%?
5g
30g
15g
1,5g
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile należy zmieszać soli i wody aby otrzymać 200g 10% roztworu?
200g wody i 10 g soli
190g wody i 10g soli
180g wody i 20g soli
200 g wody i 20g soli
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Stężenie procentowe 10% oznacza, że:
na 100g wody przypada 10 g soli
w roztworze jest 10 g soli
na 100g roztworu przypada 10g soli
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakie będzie stężenie solanki do kiszenia ogórków, gdy do litra wody wsypano 5g soli
około 5%
około 1%
około 0,5%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaka jest masa roztworu 20%, gdy wiadomo, ze znajduje się w nim 40g soli
400g
120g
200g
2000g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile należy dodać wody do 15g soli aby otrzymać 30% roztwór?
50g
70g
35g
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