lexirh8380 lexirh8380

02-07-2017
Chemistry

contestada

How many moles of nitrogen are in 66.0 g of nitrous oxide?

Respuesta :

ARYANAGARWAL ARYANAGARWAL

02-07-2017

Rmm of N20 = (14X2) + 16 = 44
Percentage by mass of Nitrogen in N20 = 28/44x100 = 63.64
66x0.6634 = 43.7844g of Nitrogen in 66g of N20
Moles = Mass/Mr = 43.7844/14 = 3.13 moles

Answer Link

Otras preguntas

Ants communicate with chemicals called a. silica. b. metronomes. c. biomes. d. pheromones

Waves that move matter back and forth are called a.transverse waves b.longitudinal wave c. Medium wave

Skeletal muscles need a rich blood supply to provide them with a. oxygen. b. carbon dioxide. c. water. d. none of the above

A vaccine a. can be harmful because it contains pathogens such as viruses. b. contains a changed pathogen, so the pathogen is no longer harmful. c. provokes a r

What is 3 square root of 24- 4 square root of 54

If vascular plants have so many advantages, why do you think nonvascular plants still exist on earth today?

A man walks 15 blocks to work every morning at a rate of 2 miles per hour. If there are 20 blocks in a mile, how long does it take him to walk to work?

A.Boer war B.Crimean war C.Emilio aguinaldo D.Sepoy mutiny E.Menelik II F.Nigeria G.Persia H.Queen Liliuokalani I.Raj J.Shaka 1. The main cause of the___

Ants communicate with chemicals called a. silica. b. metronomes. c. biomes. d. pheromones

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.