Answer:
The mass of magnesium that has been consumed, was 6.69 g
Explanation:
The reaction is this one:
3Mg (s) + N₂(g) → Mg₃N₂
3 moles of solid magnesium react with 1 mol of nitrogen, to make 1 mol of magnesium nitride.
If 9.27 grams of nitrogen react, we see that ratio is 1:1, so we make 9.27 grams of nitride.
Mass / Molar mass = Moles
9.27 g / 100.9 g/m = 0.092 moles
If we have 0.092 moles of nitride, ratio between Mg is 1:3 so, the rule of three will be:
1 mol of Nitride was produced by 3 moles of Mg (s)
0.092 moles of nitride were produced by, (0.092 .3)/1 = 0.275 moles
Mass og Mg = 24.3 g/m
Molar mass . Moles = Mass
0.275 m . 24.3g/m = 6.69 g
When mentos and diet coke are mixed, the diet soda explodes
Explanation:
Due to the fact that the mentos are dense, they sink to the bottom of the bottle which gives the diet coke its explosion.
Answer: 31.8 g
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of 
require 3 moles of 
Thus 0.59 moles of will require=
of
Thus is the limiting reagent as it limits the formation of product and is the excess reagent as it is present in more amount than required.
As 1 mole of give = 2 moles of 
Thus 0.59 moles of give =
of
Mass of 
Thus 31.8 g of will be produced from the given masses of both reactants.
Answer:
The bond angles between the axial bonding groups are slightly less than 180°.
The bond angles between the equatorial bonding groups are slightly less than 120°.
Explanation:
Accordign to VSEPR theory, a molecule with four bonding groups and one lone pair on the central atom has a trigonal bipyramidal electronic geometry.
The position of the lone pair can be located in the equatorial position or axial position.
When the lone pair is found in equatorial position, it has two axial groups that repel it and the angle of the lone pair between each axial group is 90°.
When the lone pair is in axial position it has 3 equatorial groups that repel it and the angle of the lone pair between each equatorial group is 90°.
Since the molecule has a lone pair, the most stable geometric structure is when the lone pair is in the equatorial position, because it has fewer repulsions than in the axial position.
The molecular geometry is "seesaw"
The bond angles between the axial bonding groups are slightly less than 180°.
The bond angles between the equatorial bonding groups are slightly less than 120°.
1.75 moles ChCl3 x (6.02 x 10 ^-23) / 1 mole = 1.0535 x 10^-22 atoms.
hope this was helpful :)
