maeheart71 maeheart71

20-12-2017
Chemistry

contestada

A sample of ammonia has a mass of 51 g. How many molecules are in this sample?

Respuesta :

Dejanras Dejanras

20-12-2017

m(NH₃)=51g, n(NH₃)=m/M=51g÷17g/mol(14+3×1)=3mol
N(NH₃)=n×Na(Avogadro number)=3mol×6·10²³1/mol=18×10²³ molecules

Answer Link

Otras preguntas

Use the quotes from the passage to determine how Amak's character is revealed through the text. "Amak, whose stomach growled, knew his family was famished—and

Which sentencing practice gives the offender a fixed term that may be reduced by good time or gain time?

Explain how you can use place value to describe how 0.05 and 0.005 compare.

Owning a gun is considered a deviant act in the united states a. True b. False

Use pensively in a sentence

John has an account balance of -$30.00 and Steve has an account balance of -$50.00. Who has more debt?

A teenager purchases a camera for $62 by endorsing his paycheck of $90. not having $28 change in his register the camera store owner runs across the street to t

Which of the following best fits the description of a theme in The Call of the Wild?

You see your friend at school after lunch. How do you greet him/her?

Ossie enters a convenience store and points a gun at the clerk pico. ossie forces pico to open the cash register and give him all the money. ossie will most lik