Disoluzioak prestatzen
Quiz
•
Chemistry
•
Professional Development
•
Practice Problem
•
Hard
Lucia Garcia
Used 3+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Disoluzioak...
Nahaste gardenak dira.
Nahaste homogeneoak dira.
Solido eta disolbatzaile batek osatuta daude.
Sustantzia puruen nahastez osatzen dira.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zer adierazten du disoluzio baten kontzentrazioa?
Zenbat substantzia dagoen.
Masa eta bolumenaren areteko proportzioa.
Solido kantitatea.
Solutuaren proportzioa.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
975 g disoluziotik 25 g sodio kloruro (NaCl) badira, zenbatekoa da masa ehunekoa?
% 0,0256
% 2,56
% 39
Ezin da jakin.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
KNO3 disoluzioaren kontzentrazioa 250 g/L bada
100 mL disoluziotan 25 g gatz egongo dira.
0,5 L disoluziotan 125 g gatz egongo dira.
10 L disoluziotan 2,5 kg gatz egongo dira.
Aurreko erantzun guztiak zuzenak dira.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
250 mL-ko disoluzio batean 25 g azukre baldin baditugu, zenbatekoa da disoluzioaren kontzentrazioa?
10%-koa.
100 g/L-koa.
225 g ur egongo dira.
Erantzun guztiak zuzenak dira.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
500 mL-ko garagardo botila baten etiketan %4,5 jartzen du. Horrek esan nahi du:
Bi botilatan 9 gramo alkohol daudela.
Lasai edan daitezkela hiru botila.
Botila batek 22,5 mL alkohol dituela
Botila batek 4,5 mL alkohol dituela.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
KCl disoluzio baten konzentrazioa % 5-ko masa bada
100 g uretan 5 g KCl egongo dira.
200 g disoluzio bakoitzeko 10 g KCl daude.
Ur litro baten 50 g KCl daude.
Erantzun guztiak zuzenak dira.
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