ashleewilson9310 ashleewilson9310
  • 11-11-2017
  • Chemistry
contestada

What mass of melamine, c3n3(nh2)3, will be obtained from 170.5 kg of urea, co(nh2)2, if the yield of the overall reaction is 77.0 % ?

Respuesta :

barnuts
barnuts barnuts
  • 21-11-2017

The balanced chemical reaction is:

CO(NH2)2(l) → HNCO(l) + NH3(g) 
6 HNCO(l) →= C3N3(NH2)3(l) + 3 CO2(g) 

(170.50 kg CO(NH2)2) / (60.0553 g CO(NH2)2/mol) x (1 mol HNCO / 1 mol CO(NH2)2) x 
(1 mol C3N3(NH2)3 / 6 mol HNCO) x (126.1199 g C3N3(NH2)3/mol) x (0.770) = 45.95 kg C3N3(NH2)3

Answer Link

Otras preguntas

Cells are blank and highly blank
__ are the people, money, information, equipment, and materials required to produce an organization's goods or services.
What is meant by the term “ridge and valley”
Diseases that occur and resolve quickly. A.allergy B.chronic diseases C.acute diseases D.cancer
A car moves 4m in 2s. The speed is_____.(t/d)​
Which dartboard represents high accuracy and low precision?
Istanbul's Dolmabaçe Palace, built near the end of the Ottoman Empire, rests on a former garden that was created in the eighteenth century at great expense by f
Pick a hobby or activity you do at least once a week and explain how science is involved. Write at least 7 sentence.
Which series has the correct sequence, spelling, and capitalization? A. Enero, Febrero, Marzo, Abril, Mayo, Junio B. enero, febrero, marzo, abril, mayo, julio C
According to exponent rules, when we divide the same base we _______ the exponents. A. Multiply B. Add C. Divide D. Subtract