Neco Model Questions Vol1 2024 Chemistry Question 13
Practice objective / multiple choice question 13 from the 2024 Neco Model Questions Vol1 Chemistry examination.
A metal X reacts with dilute hydrochloric acid according to \(\text{X}(s) + 2\,\text{HCl}(aq) \rightarrow \text{XCl}_2(aq) + \text{H}_2(g)\). When 0.500 g of X is added to excess 1.0 M HCl, 0.187 L of hydrogen gas is collected at 25 °C and 1 atm pressure. Assuming ideal‑gas behaviour, determine the atomic mass of X (to the nearest whole number).
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This is Neco Model Questions Vol1 2024 Chemistry Question 13. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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