Question

How many molecules of N₂O₄ are in 7.016 kg N₂O₄? The molar mass of N₂O₄ is 92.02 g/mol. [Hint: kg] *

Answer 1

Answer:

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Explanation:

Elements Atomic Mass (u)

Hydrogen 1

Carbon 12

Nitrogen 14

Oxygen 16

Sodium 23

Magnesium 24

Sulfur 32

Chlorine 35.5

Calcium 40

actor Atoms Molecules

Definition Most fundamental and smallest part that can exist of an element. Two or more atoms chemically bonded together.

Example Oxygen – O

Phosphorus – P

Sulphur – S

Hydrogen – H Oxygen – O2

Phosphorus – P4

Sulphur – S8

Water – H2O

Structure The smallest particle with properties of an element. Combination of two or more atoms.

Stability An atom may not always be stable in nature due to the presence of electrons in the outer shells. Molecules are formed to attain stability.

Constituent Elements Protons, Electrons & Neutrons Two or more atoms of the same or different elements

Reactivity Except for the noble elements, atoms of all elements showcase a certain level of reactivity. Compared to a molecule, the level of reactivity is less than some valence points are filled by electrons of combined elements.