muhammad116 muhammad116
  • 01-06-2017
  • Chemistry
contestada

which mass of urea CO(NH2)2 contains same mass of nitrogen as 101.1 g of potassium nitrate?

Respuesta :

amrest amrest
  • 07-06-2017
Calculate according to standard atomic weight, potassium nitrate (KNO3)'s nitrogen content is 14/(39+14+16*3) = 13.86%. So 101.1 g of potassium nitrate contains 101.1*13.86% = 14.01 g nitrogen.  Urea CO(NH2)2's nitrogen content is 14*2/(12+16+14*2+1*4) = 46.67%, so to have the same amount of nitrogen, the mass of urea needs to be 14.01/46.67% = 30.02 g.
Answer Link

Otras preguntas

What country restricts travel by American citizens to specific reasons like journalism and research? Puerto Rico Honduras Bolivia Cuba
Like freestanding sculpture, such as Gianlorenzo Bernini's Apollo and Daphne twentieth-century kinetic sculpture, such as Alexander Calder's La Grande Vitesse i
Knowledge of atomic structure has evolved over time. Thomson discovered that atoms contain electrons, Rutherford discovered that most of the mass of an atom is
Metamorphosis is a type of homeostasis. a. True b. False
One of the biggest risks involved in using e-mail is a. loss of privacy. b. slowness. c. lost attachments. d. junk mail.
248 miles in 4 hours. what is his unit rate of speed in miles per hour?
cuanto es 20 + 20 porfa ayuda
When driving in a fog or snow, you should use your high beams. a. TRUEB. FALSE?
How do you make slime
The technique of selling commercial products by creating a new social anxiety and suggesting a product to cure it was known in the 1920s as what type of “ethos”