Answered

Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

How many grams are there in 2.8 * 10 ^ 24 molecules of Li 2 O?

Sagot :

First, we must know Avogadro's number:

1 mol of any substance = 6.02x10^23 formula units (ions, atoms, molecules, etc)

Also, we can say this:

1 mol of Li2O = its mass expressed in grams

(from Li2O molar mass = 30 g/mol approx.)

Now,

1 mol Li2O = 30 g = 6.02x10^23 molecules Li2O

30 g Li2O ----------- 6.02x10^23 molecules Li2O

x ----------- 2.8x10^24 molecules Li2O

x = 140 g approximately

Answer: 140 g

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.