littlej4 littlej4
  • 23-05-2018
  • Chemistry
contestada

How many moles of helium gas are contained in a 4.0 L flask at STP

Respuesta :

vinyl50098
vinyl50098 vinyl50098
  • 23-05-2018
First, you convert liters to moles. 
Usually you have to go to grams but this is STP.

Get moles directly by dividing the 4 by STP (22.4)
[tex] \frac{4}{22.4} =0.17857142857[/tex]
About [tex]1.8*10^{-1} [/tex] or 0.18 moles whichever your teacher prefers

Answer Link

Otras preguntas

Ellen has 40% of the amount of money Megan has. Megan has 80% of what Kristin has. Kristin has $200. How much money does Ellen have?
Write a two to three sentences using at least two adjectives that describes your favorite place to be. Include one comparative or one superlative adjective in y
_____is a form of energy that will operate appliances or produce light to heat
The consequences of imperialism were the same for the colonizer as they were for the colonized. True or false
which of the following best describes the African American experience in the military? A. african americans were an integral part of military troughout the war
explain why the slope of a horizontal line is always zero
Do we try to present false version of ourselves on social media? If so, why?
If an image appears again and again throughout the text, it is an example of a(n)
Dakota’s parents will leave Norfolk, VA at 7:30 a.m. on Thursday in their personal vehicle. The average speed the vehicle will travel is 70 miles per hour. 1.
If f(x) = 7x-5 and g(x)=2x-4, find f/g