Discover answers to your most pressing questions at Westonci.ca, the ultimate Q&A platform that connects you with expert solutions. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.
Sagot :
10.55 grams of nitrogen gas are formed when 18. 1 g of ammonia is reacted with 90. 4 g of copper(ii) oxide.
What is stoichiometric law?
The laws which deals with the composition of substance by mass or his volume are called the laws of stoichiometry.
The laws of stoichiometry are:
- Law of conservation of mass
- Law of definite/constant proportion
- Law of multiple proportion
- Law of reciprocal proportions
- Law of gaseous volume
Reaction:
3CuO + 2NH₃ → N₂ + 3 Cu + 3 H₂O
n(CuO) = m(CuO) / 64 + 16 = 90.4 / 80 = 1.13 mol (molar mass of CuO = 90.4)
n(NH₃) = m(NH₃) / 14+3 = 18.1 / 17= 1.065mol (molar mass of NH₃ = 18)
For 1.065 mol of NH3 undergoing the reaction, 3/2 times larger amount of CuO is needed.
CuO is 1.6 mol but it's only 1.13 of it so CuO is a limiting reactant, we must count stoichiometry by amount of this reactant.
n(CuO) = 1.13 mol,
n(N₂) = n(CuO) / 3 = 1.13 / 3 = 0.376 mol
m(N₂) = 0.376 x 28 = 10.55 grams
10.55 grams of nitrogen gas are formed when 18. 1 g of ammonia is reacted with 90. 4 g of copper(ii) oxide.
Learn more about stoichiometric law, Here:
https://brainly.com/question/14465605
#SPJ4
Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.
