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

Elizabethan people also consider their health when choosing what to eat. . . . But our ideas about healthy food are very different from Elizabethan ones. For ex

Write your summary of the first paragraph of “Better Never to have met at all”

15 pts + brainliest to right/best answer

Solve the system of linear equations by substitution. 3x+2y=0 y=1/2x-1 I keep getting the wrong answer to this problem! Can somebody please explain how to do

PLEASE CAN SOMEONE HELP!

What techniques are used to engage a reader? Check all that apply. A - Using a quotation B - Providing a conclusion C - Giving an anecdote D - Presenting a seri

9th grade math should be ez I’m tired please fast

Complete the sentence using the negative form of the command in the first sentence. ¡Llena el tanque! ¡No___ la llanta!

Joe ran around a pentagon shaped track with sides each measuring 1,760 feet. If he made three complete trips around the track, how far did he run?

What was the advantage of using transistors instead of vacuum tubes in the second-generation computers? A. Computers were drastically reduced in size. B. Comp