3.14 × 10²⁴ Formula Units
As we know that 1 mole of any substance contains exactly 6.022 × 10²³ particles which is also called as Avogadro's Number. So in order to calculate the number of particles (formula units) contained by 5.23 moles of NaNO₃, we will use following relation,
Moles = Number of F. Units ÷ 6.022 × 10²³ F. Units.mol⁻¹
Solving for Number of F. Units,
Number of F. Units = Moles × 6.022 × 10²³ F. Units.mol⁻¹
Putting values,
Number of F. Units = 5.23 mol × 6.022 × 10²³ Molecules.mol⁻¹
Number of F. Units = 3.14 × 10²⁴ F. Units
Hence,
There are 3.14 × 10²⁴ Formula Units present in 5.23 moles of NaNO₃.
Answer:
Desk
Water
Cloud
Helium
Explanation:
water
B.
uranium
C.
sunlight
D.
wind
Answer:
Exothermic
Explanation:
An exothermic reaction is defined as a reaction where heat/energy is released. In the formation of rust, iron reacts with oxygen gas to form ferric oxide and energy. Energy in the products side indicates a release of energy, thus making this reaction exothermic.
The common uses of base if for the formation of salts in a neutralisation reaction.
Neutralisation reaction is a type of chemical reaction whereby salt and water is formed from the reaction of an acid and a base.
For example the reaction between NaOH and HCl leads to the formation of a salt called NaCl.
Therefore, the common uses of base if for the formation of salts in a neutralisation reaction.
Learn more about neutralisation reaction here:
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