Ethanol (C 2 H 5 OH, the alcohol in alcoholicbeverages) and water react with sod
ID: 687159 • Letter: E
Question
Ethanol (C2H5OH, the alcohol in alcoholicbeverages) and water react with sodium metal to produce hydrogengas: C2H5OH(l) + Na(s) ®NaC2H5O(s) + ½H2(g)H2O(l) + Na(s) ®NaOH(s) + ½H2(g) Ethanol floats over water. Given 1.0 g each of ethanol and water,and sodium metal in excess, which will produce more hydrogen?
Water willproduce more hydrogen.
Ethanol willproduce more hydrogen.
Both willproduce the same amount.
Which one of the following statements best explains yourprediction?
Equal massesmean equal amonuts of material.
The ethanolsample has less particles because its molecules weighmore.
Given thesame mass, the more dense material has more particles.
Water isheavier than ethanol, therefore a molecule of water weighs morethan a molecule of ethanol.
Ethanol isless dense than water, therefore the ethanol sample islarger.
C2H5OH(l) + Na(s) ®NaC2H5O(s) + ½H2(g)
H2O(l) + Na(s) ®NaOH(s) + ½H2(g)
Explanation / Answer
We Know that : The given equation is : C2H5OH(l) + Na(s) ®NaC2H5O(s) + ½H2(g)H2O(l) + Na(s) ®NaOH(s) + ½H2(g) given : 1 g of ethanol it means that the number of moles of ethanoltaken = 1 g / 46 g / mol = 0.0217 mol 1 g of water means that the number of moles of watertaken = 1 g / 18 g / mol = 0.0555 mol From the above balanced equation it is clear that 1 mole of ethanoland water liberates the same number of moles of hydrogen. so for thesame amount of substance water liberates more amount ofhydrogen. 2. Theethanol sample has less particles because its molecules weighmore.
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.