Question

Calculate He mass in gm of 2NA molucules of CO2​

Answer 1

Answer:

2NA ×co2 in gram

2×11=22

5×2=10

Answer 2

Correct Question: Calculate the mass of 2 Nₐ molecules of CO₂ in grams.

Solution:

Nₐ refers to Avogadro number of particles.

Step 1: Calculate the number of moles of CO₂

→ Number of Moles = No. of molecules / Avogadro no. of molecules

→ Number of Moles = 2 Nₐ / Nₐ = 2 moles of CO₂

Step 2: Calculate Given mass by Mole Formula

→ Number of moles = Given Mass / Molar Mass

→ Molar mass of CO₂ = 12 + 2 ( 16 ) = 44 g

→ 2 moles = Given Mass / 44 g

→ Given Mass = 44 g × 2 = 88 g

Therefore the mass of 2 Nₐ molecules of CO₂ in grams is 88 g.