Answer:
2.29 g of N2
Explanation:
We have to start with the <u>chemical reaction</u>:
![NaN_3~->~Na~+~N_2](https://tex.z-dn.net/?f=NaN_3~-%3E~Na~%2B~N_2)
The next step is to <u>balance the reaction</u>:
![2NaN_3~->~2Na~+~3N_2](https://tex.z-dn.net/?f=2NaN_3~-%3E~2Na~%2B~3N_2)
We can continue with the <u>mol calculation</u> using the molar mass of
(65 g/mol), so:
![3.55~g~NaN_3\frac{1~mol~NaN_3}{65~g~NaN_3}=0.054~mol~NaN_3](https://tex.z-dn.net/?f=3.55~g~NaN_3%5Cfrac%7B1~mol~NaN_3%7D%7B65~g~NaN_3%7D%3D0.054~mol~NaN_3)
Now, with the<u> molar ratio</u> between
and
we can <u>calculate the moles</u> of
(2:3), so:
With the molar mass of
we can <u>calculate the grams</u>:
I hope it helps!
Answer:
Option D is correct = 8.12 grams of NaCl
Explanation:
Given data:
Moles of sodium chloride = 0.14 mol
Mass of sodium chloride = ?
Solution:
Formula:
Number of moles = mass of NaCl / Molar mass of NaCl
Molar mass of NaCl = 58 g/mol
Now we will put the values in formula.
0.14 mol = Mass of NaCl / 58 g/mol
Mass of NaCl = 0.14 mol × 58 g/mol
Mass of NaCl = 8.12 g of NaCl
Thus, 0.14 moles of NaCl contain 8.12 g of NaCl.
Because they don't care and think the ozone layer is fine.
It creates oxygen which every living thing needs to live. i hope this helps! :)