Chemistry: What is the atomic weight of an element if 4 grams of it contains 2.98 x 10^22 atoms?

What is the atomic weight of an element if 4 grams

Ответ:

chrischris1

11.01.2022

N=amount in moles
N=amount in numbers=2.98x10^22
L=Avagadro's constant=mole-1(6.022x10^23)
m= mass in grams
M=molar mass in g/mol
Now,
n=N/L
=2.98x10^22/6.022x10^23
=0.0495 mol ≈0.05 mol
Then,
M=m/n
=4/0.05
=80 g/mol
The element is Br

0,0(0 оценок)

Ответ:

yedida

07.03.2023

Chemistry

conductivity

☃️ Hope this helps☃️

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

What is the atomic weight of an element if 4 grams of it contains 2.98 x 10^22 atoms?

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Chemistry

Ask an AI advisor a question