Mole concept

Mole concept

9th - 12th Grade

15 Qs

quiz-placeholder

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Mole concept

Mole concept

Assessment

Quiz

Chemistry

9th - 12th Grade

Hard

Created by

Mahesh Kumar

Used 38+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How much calcium is present in the amount of Ca(NO3)2Ca\left(NO_3\right)_2  that contains 20 g of nitrogen

38.0 g Ca

48.5 g Ca

28.6 g Ca 

32.4 g Ca

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How much phosphorous is contained in 5 g of the compound CaCO3.3Ca3(PO4)2CaCO_3.3Ca_3(PO_4)_2  ? (Ca = 40.08)

0.9 g

1.4 g

1.9 g

2.4 g

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calculate the molecular mass of (NH_4)_2SO_4.FeSO_4.6H_2O  

362

372

382

392

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The number of moles of Ca is 5g of sample CaCO3CaCO_3 is

0.125

0.25

0.05

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mass of 4 moles of Al atom is

108 u

108 g

both A and B

108

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What will be the volume of 1 gram Helium at NTP?

6.5 litre

7.5 litre

5.6 litre

4.6 litre

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The number of molecules in 100 ml each of O_2,NH_3\ and\ CO_2  at STP are

 NH3>O2>CO2NH_3>O_2>CO_2  

 NH3<CO2<O2NH_3<CO_2<O_2  

 NH3<O2<CO2NH_3<O_2<CO_2  

The same 

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