Question

Calculate the number of molecules in 4.4 gm. of CO2 [C = 12, O = 16]

August 4, 2024

Answer

Gram molecular mass of CO₂ = 12 + 32 = 44 g and contains 6.023 × 10²³ molecules.

∴ 4.4 gm. of CO₂ will contain = $6 × 10^{23} \over44$ × 4.4

= 6.023 × 10²² molecules.

Hence, number of molecules = 6.023 × 10²² molecules.

💡 Some Related Questions

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2NaOH + CuSO4 ⟶ Na2SO4 + Cu(OH)2↓
What mass of copper hydroxide is precipitated by using 200 g of sodium hydroxide.
[H = 1, O = 16, Na = 23, S = 32, Cu = 64]

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(i) State what mass of aluminium hydroxide is formed from 12 g. of aluminium carbide.
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Calculate:
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