The law of conservation of mass states that matter is neither created nor destroyed in chemical reactions. in any chemical reaction, the total mass of the products always equals the total mass of the reactants.
Explanation:
density = mass/volume so volume = mass/density = 40/4.30
Mass of Oxygen = 95.36 g
<h3>Further explanation</h3>
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
<em>How many grams of oxygen (O2) react with 3.97 moles of AI?</em>
Reaction
4 Al + 3 O₂ → 2 Al₂O₃
From the equation , mol ratio Al : O₂ = 4 : 3, so mol O₂ :
mass O₂(MW=32 g/mol) :
The question needs:
In a 1 M solution of N₂H₄(aq), identify the relative molar amounts of these species. from most to least...
H₂O N₂H₅⁺~OH⁻ H₃O⁺ N₂H₄
H₂O is most
second N₂H₄
N₂H₅ and OH⁻ present in equal amount
H₃O⁺ is zero
because N₂H₄ is weak base it partially ionizes in water as following:
N₂H₄ + H₂O ⇄ N₂H₅⁺ + OH⁻