Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? - Chemistry

प्रश्न

Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? The equation for the reaction is:

$3 CuO + 2 NH_{3} ⟶ 3 Cu + 3 H_{2} O + N_{2}$

संख्यात्मक

उत्तर

$3 CuO + 2 NH_{3} ⟶ 3 Cu + 3 H_{2} O + N_{2}$

The molecular mass of 3Cu 3CuO = (240)g

Molecular mass of 2NH₃ = 2 × 22.4 = 44.8 dm³

Molecular mass of 3Cu = (192)g

240 g of CuO requires 44.8 dm³of NH₃

∴ 120g of CuO will require $\frac{120 \times 44.8}{240}$

= 22.4 dm³

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Q 44 Q 43 Q 45. (a)

पाठ 5: Mole concept and Stoichiometry - Miscellaneous Exercises [पृष्ठ ९८]

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पाठ 5 Mole concept and Stoichiometry
Miscellaneous Exercises | Q 44 | पृष्ठ ९८

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Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? - Chemistry

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Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? - Chemistry

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