## Mass of electron in 1B.15

zfinn
Posts: 81
Joined: Fri Aug 30, 2019 12:16 am

### Mass of electron in 1B.15

In homework problem 1B.15 (from the quantum section) were we expected to know the mass of the electron? Or is it okay to look that info up/will it be provided on a constants sheet for the test? Thanks so much!

Selena Yu 1H
Posts: 83
Joined: Fri Aug 09, 2019 12:16 am

### Re: Mass of electron in 1B.15

No, we weren't suppose to know the mass of electron. You can look it up. We would be provided this information on the test.

Tyler Angtuaco 1G
Posts: 106
Joined: Wed Sep 11, 2019 12:16 am

### Re: Mass of electron in 1B.15

The mass of an electron is a constant, and like the other constants we use in chemistry, it will be provided on tests. The mass of an electron is 9.109x10^-31kg.

905385366
Posts: 54
Joined: Sat Jul 20, 2019 12:16 am

### Re: Mass of electron in 1B.15

The mass of the electron is 9.1095x10-31 kg. This value will be given to you on the reference sheet for the test so don't worry about it!