Question

calculate the mass of 12.044×10^25 molecules of oxygen

Answer 1

may it will help you
☺
answer is 3200

it might be 6400 if you use 32 instead of 16
as I have taken only "O" so molar mass is 16
if you will take it as "O2" then it's molar mass will be 2×16= 32

Answer 2

The mass of given number of molecules of oxygen is 6400 g

Explanation:

We are given:

Number of molecules of oxygen = $12.044\times 10^{25}$

According to mole concept:

1 mole of an element or compound contains $6.022\time 10^{23}$  number of particles.

Molar mass of oxygen gas = 32 g/mol

As, $6.022\time 10^{23}$ number of molecules of oxygen has a mass of 32 grams

Then, $12.044\times 10^{25}$ number of molecules of oxygen will have a mass of = $\frac{32}{6.022\times 10^{23}}\times 12.044\times 10^{25}=6400g$

Learn more about mole concept:

https://brainly.com/question/2350620

https://brainly.com/question/1265866

#learnwithbrainly