I am probably wrong but I would think 900. I wouldn’t submit that without somebody backing me up though.
Answer:
Mass of carbon dioxide = 7.48 g
Explanation:
Given data:
Mass of lithium carbonate = 12.5 g
Mass of carbon dioxide produced = ?
Solution:
Chemical equation:
Li₂CO₃ → Li₂O + CO₂
Number of moles of Li₂CO₃:
Number of moles = mass/ molar mass
Number of moles = 12.5 g /73.89 g/mol
Number of moles = 0.17 mol
Now we will compare the moles of Li₂CO₃ with CO₂.
Li₂CO₃ : CO₂
1 : 1
0.17 : 0.17
Mass of carbon dioxide:
Mass of carbon dioxide = number of moles × molar mass
Mass of carbon dioxide = 0.17 mol × 44 g/mol
Mass of carbon dioxide = 7.48 g
Acidic! Fluoride is the most electronegative element.
Hey there!
[He]2s²2p⁴ is the electron configuration for O (oxygen).
He is the noble has before oxygen. It has 2 electrons.
The s orbital is filled, and there are 4 electrons in the p orbital, so 6 elements over to the right.
This makes a total of 8 electrons.
Hope this helps!