Question

No. of molecules present in of 0.5 mole of O2 is-
A. 6. 022×10 power 23
B. 3. 011 ×10 power 23
C. 3.011×10 power 22
D. 6.023×10 power 22​

Answer 1

Answer:

3.011 × 10²³

Explanation:

Here is your answer .....

By using the formula ,

n = N/Ná

(n = no. of moles

N= no.of molecules

Nà = Avogardo 's no.)

:- N = n× Nà

:- N =0.5 ×6.023 ×10^²³

:- N= 3.011 ×10^²³molecules.

:- Option (B) is the right answer...

Hope this helps you a little!!

Answer 2

Explanation:

ɴᴏ. ᴏғ ᴍᴏʟᴇᴄᴜʟᴇs ᴘʀᴇsᴇɴᴛ ɪɴ ᴏғ 0.5 ᴍᴏʟᴇs ᴏғ ᴏ2 ɪs :-

(ʙ) 3.011 × 10^23