Question

. Calculate the number of moles in 12.044 × 1023 number of He
3. Calculate the molar mass of 0.5 mole of N2 gas
4. Calculate the molar mass 0.5 mole of N atoms
5. Calculate the molar mass of 3.011 × 1023 number of N atoms
6. Calculate the molar mass of 6.022 × 1023 number of N2 molecules
7. Calculate the number of particles in 46 g of Na atoms
8. Calculate the number of particles in 8 g O2 molecules
9. Calculate the number of particles in 0.1 mole of carbon atoms


plz friends some one help me......
I want it with steps.....​

Answer 1

Answer:

2.

ExplaFor Helium,

Number of atoms=Number of moles ×6.022×10  

23

 

No of Moles =  

6.022×10  

23

 

12.044×10  

23

 

​  

 = 2.

Now, atomic mass of He=4

Weight = 2×4 = 8 g

Answer 2

Answer:

here's your answer

Explanation:

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