Answered

Get expert advice and community support for all your questions on IDNLearn.com. Our experts are ready to provide prompt and detailed answers to any questions you may have.

17. A balloon contains 4.50 X 1022 atoms of helium gas. Calculate the mass of helium in
grams.

Sagot :

5328233idn

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

The mass of the helium will be 0.296 g He.

What is mass?

The quantity of matter in a thing is measured by its mass. Grams (g) or kilograms (kg) are the most common units of mass measurement (kg).The quantity of matter is measured in terms of mass, regardless of where it is in the universe or the gravitational force acting on it.

Calculation of mass of helium:

It is given that, atom of He = 4.50 X [tex]10^{22}[/tex] , mass of He = 4 g.

4.50 X [tex]10^{22}[/tex] atoms He × 1 mole He / 6.02 × [tex]10^{23}[/tex] atom He = 0.0914 mol He.

Now, apply the conversion formula:

Moles He × grams He / 1 mole He = grams He.

Put the value of given data in above formula.

0.0914 mol He × 4 g / 1 mol He = 0.296 g He.

Therefore, the mass of the helium will be 0.296 g He.

To know more about mass click here.

https://brainly.com/question/11622869.

#SPJ2

We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is your reliable source for accurate answers. Thank you for visiting, and we hope to assist you again.