estvega1717 estvega1717

19-12-2020
Chemistry

contestada

A balloon contains 12.1 L of helium gas at STP. What is the mass in grams of He in the balloon?

Respuesta :

raduoprea160 raduoprea160

19-12-2020

Answer:\

1.08 grams

Explanation:

first, we need to find the number of moles

we divide 12.1/22.4=0.54 moles

we multiply the number of moles with the molecular mass 0.54x2=1.08g

Answer Link

Otras preguntas

If there are two imilar triangle one with a length of 15 cm and a width of 11. 25 cm in another with the length of X and the width of 9 cm, what doe X repreent

Imagine that the Earth's orbit were changed to be a perfect circle about the Sun so that the distance to the Sun never changed. How would this affect the season

PLEASE HELP and give explanation if you can. ILL MARK YOU BRAINLIST

which of the following is a possible benefit of adding assertions to a digital design? group of answer choices a) they facilitate black-box testing. b) they hel

Which ordered pair are in the olution et of the ytem of linear inequality? y>-1/3x2 y < 2x 3

How many people Mark and Heather can invite to the party?

You recently started working as a data analyst for a large defense company, which is currently implementing software that requires a binary tree implementation.

in this question the truck is much heavier than the car. they are both moving at the same speed when they collide. which choice describes the forces?

How does the image of Todd's shirt being barely blue affect the passage

many businesses choose a one-year fiscal period that ends during a period of high business activity. t or f