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Volumetrija

Authored by Gabrijela Roguljic

Chemistry

2nd Grade

NGSS covered

Used 5+ times

Volumetrija
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14 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

______________ je točka u titraciji u kojoj se događa fizikalna promjena u obliku promjene boje, koja se zbiva pri stanju kemijske ekvivalencije

završna točka titracije

točka ekvivalencije

greška titracije

ravnotežno stanje

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indikatori su tvari koje mijenjaju boju ovisno o prisutnosti

kiseline ili baze

pufera

vode

estera

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Na slici je prikazana

Pipeta

Bireta

propipeta

kiveta

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Za reakciju Na2CO3 + 2HCl --> 2NaCl + H2O

25 mL otopine Na2CO3 titrirano je s 14.5 mL HCl-a množinske koncentracije 0.1 molL-1. Kolika je koncentracija otopine Na2CO3?

0.00145 molL-1

7.25 x 10-4 molL-1

0.029 molL-1

0.058 molL-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

HCl + NaOH → 

NaH + ClOH
NaCl + H2
NaCl + H2O
NaCl + Cl2

Tags

NGSS.HS-PS1-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Odaberi sliku koja prikazuje propipetu

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Odaberi sliku koja prikazuje biretu

Media Image
Media Image
Media Image
Media Image

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