Yakeen NEET 3.0 Mole Concept DPP-01

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.

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!