A sample of sodium metal is added to water and the hydrogen gas evolved is collected in a gas measuring tube over water. The equation for the reaction is 2 Na (s) + 2 H₂O (1)→ 2 NaOH (aq) + H₂(g) If 95.0 mL of hydrogen are collected at 27 °C and 0.974 atm, what mass of sodium reacted?

A sample of sodium metal is added to water and the hydrogen gas evolved is collected in a gas measuring tube over water. The equation for the reaction is 2 Na (s) + 2 H₂O (1)→ 2 NaOH (aq) + H₂(g) If 95.0 mL of hydrogen are collected at 27 °C and 0.974 atm, what mass of sodium reacted?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter6: The Gaseous State

Section: Chapter Questions

Problem 6.63QE

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Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

A sample of sodium metal is added to water and the hydrogen gas evolved is collected in a gas
measuring tube over water. The equation for the reaction is
2 Na (s) + 2 H₂O (1)→ 2 NaOH (aq) + H₂(g)
If 95.0 mL of hydrogen are collected at 27 °C and 0.974 atm, what mass of sodium reacted?

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