Yakeen NEET 3.0 Mole Concept DPP-01

Questions and Answers

Which one of the following cannot be separated by the process of sublimation?

Iodine

Camphor

Copper sulphate

Ammonium chloride (correct)

The weight of a molecule of the compound C6H12O6 is approximately:

3 × 10–22 g

22 × 10–22 g

180 g (correct)

132 g

If the mass of one atom of an element is $8 imes 10^{-24}$ g, this is equal to how many atomic mass units (u)?

48 u

0.048 u

4.8 u (correct)

0.48 u

What is the value of 1 u in grams?

$1.66 imes 10^{-24}$ g Signup and view all the answers

What is the charge of 96 amu of S2–?

9.6 × 10–19 C Signup and view all the answers

How many total valence electrons are present in 2.8 g of N3– ion?

2.6 NA Signup and view all the answers

Calculate the weight occupied by $12.04 imes 10^{24}$ molecules of N2(g).

56 g Signup and view all the answers

What is the equivalent mass of 1 mole of N2(g) in grams?

28 g Signup and view all the answers

Study Notes

Sublimation Process

Sublimation is a phase transition of a substance from solid to gas without passing through a liquid phase.
Camphor and iodine can be separated by sublimation, while ammonium chloride and copper sulfate cannot.

Molecular Mass of C6H12O6

The molecular weight of glucose (C6H12O6) is approximately 180 g/mol.
Other mentioned weights include:
- 3 × 10–22 g
- 22 × 10–22 g
- 132 g

Charge of Sulfide Ion (S2–)

The charge corresponding to 96 amu of S2– is:
- Option (1) 2 C
- Option (2) 3.2 × 10–19 C
- Option (3) 9.6 × 10–19 C
- Option (4) 6 C

Atomic Mass Conversion

The mass of one atom of an element is given as 8 × 10–24 g.
This value can be converted to atomic mass unit (u):
- 1 u equals approximately 1.66 × 10–24 g.

Valence Electrons in N3– Ion

The total number of valence electrons in 2.8 g of N3– ion needs to be calculated.
Valence electrons are crucial for understanding bonding and reactivity in chemical compounds.

Calculation of Weight of Nitrogen Molecules

To calculate the weight occupied by 12.04 × 10^24 molecules of N2(g), one needs to use Avogadro's number and the molar mass of nitrogen.
This illustrates the relationship between the number of molecules and mass in moles.

Description

Test your understanding of the Mole Concept with this quiz designed for NEET 2024 preparation. Explore questions related to sublimation and molecular weight, enhancing your grasp of important chemistry concepts. Get ready to challenge yourself and solidify your knowledge!