Neco 2018 Chemistry Question 44
Practice objective / multiple choice question 44 from the 2018 Neco Chemistry examination.
A 20.0 g sample of a solid mixture contains compounds A (M = 60 g·mol⁻¹) and B (M = 120 g·mol⁻¹). When the mixture is heated, B decomposes completely to give nitrogen gas according to \(\mathrm{B} \rightarrow \mathrm{N_2} + \text{other products}\) while A yields only non‑gaseous products. The volume of nitrogen collected at 298 K and 1.00 atm is 1.80 L. Determine the mass percent of B in the original mixture.
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About This Question
This is Neco 2018 Chemistry Question 44. It is one of the objective questions from the 2018 Neco Chemistry examination.
Difficulty level: Medium .
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