Mass of the of sample using the balance is 433.2 g
You can estimate the decimal part because it not exactly 3
400 + 30 + 3.2
To find the density of the sample you divide mass / volume = density
Mass = 433.2 and Volume = 65.6ml 433.2 g / 65.6
6. 6 g/ml^3
Density = 6.6 g / ml^3 and Mass = 433.2 g
Mg3N2
Mg - 3 times 24.31 g= 72.93 g
N - 2 times 14.01 g= + 28.02 g
Molar Mass= 100.95 g/mol Mg3N2
112.8 kpa, the reason for this is you subtract 3.2 Kpa from 116.0kpa and that's the answer.
The weather would be around the same maybe dropping 5 degrees
I believe the correct answer would be the second option. Scale models that show what a large object will look like are a visualization model. It is a physical representation of a certain object which has a consistent scale factor with the original object.
