
DISOLUZIOAK
Authored by Arrate Usatorre
Chemistry
1st Grade
Used 19+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dalsy jarabea ibuprofeno disoluzio bat da. Bere kontzentrazioa 20mg/mL bada, zenbat mL hartu behar ditu 30 mg ibuprofeno hartu behar dituen ume batek?
1mL
600mL
1,5mL
0,6mL
Answer explanation
20mg/mL= 30mg/V
20V= 30
V=30/20=1,5mL
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bere kontzentrazioa 2,5g/L den disoluzio batetatik 20 dezilitro hartzen baditugu, bertan
2,5g soluto daude
50 gramo soluto daude
5 gramo soluto daude
25 gramo soluto daude
Answer explanation
20dL= 2 litro
1 litrotan 2,5 gramo soluto badaude, 2 litrotan 5 gramo egongo dira.
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Zenbat mL alkohol daude irudiko botilan?
220mL
235mL
240mL
210mL
Answer explanation
Etiketan jartzen duenez, 250mL ko bolumena du eta bolumen horren %96a da alkohola.
4.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Aquarius edariaren inguruko informazioak dioenez, bere azukre kontzentrazioa 63g/L da.
Idatzi (unitate gabe) zenbat gramo azukre dituen irudian ikusten duzun Aquarius latak
Answer explanation
Lataren bolumena 330mL=0,33 litro da.
Litro bakoitzean 63 gramo azukre badaude, 0,33 litrotan 63*0,33 gramo azukre egongo da.
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Irudiko pizzak 405gramo dauzka eta bere informazioan jartzen duenez, bere %6 proteinak dira.
Zenbat gramo proteina jango dituzu pizza horren erdia janez gero?
Answer explanation
Pizzaren masa 405 gramokoa da eta horren %6 da proteina; beraz, pizza osoa jaten badugu, 6*405g/100=24,30 gramo proteina hartuko dugu.
Pizza erdi jan dugunez, 24,30/2=12,15 gramo proteina hartu dugu
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Gominola hauen %46a azukrea da.
Zenbat gramo gominola eta, ondorioz, zenbat gominola, jan dezake GEHIENEZ, egunean gehienez 27,6 gramo azukre jan dezaken pertsona batek, gominola bakoitzak hamar gramo baditu?
80 gramo
8 gominola
70 gramo
7 gominola
50 gramo
5 gominola
60 gramo
6 gominola
Answer explanation
27,6 gramo azukre da gominolen masaren %46a.
Jan ditzakegun gominolen masa= 27,6*100/46=60 gramo.
60 gramo gominola ahal ditu jan.
Gominola bakoitzak 10 gramo dituenez, 6 gominola
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Laborategian nago eta 52 gramo azido nitriko hartu nahi ditut. Zenbat gramo hartu behar ditut botilatik?
80 gramo
75 gramo
85 gramo
78 gramo
Answer explanation
Etiketan begiratuta, disoluzio horren %65a azido nitrikoa dela ikusten dugu.
Hartzen dugun disoluzio masaren %65= 52 gramo azido nitriko.
Disoluzio kantitatea=52g*100/65= 80 gramo disoluzio
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