The mass of magnesium consumed amounts to 21.42g. Explanation: As per the balanced reaction, three moles of magnesium react with one mole of nitrogen, producing one mole of magnesium nitride. Given that the mass of nitrogen involved equals 8.33g, the moles of the reacted nitrogen equal a particular quantity. The required moles of magnesium, therefore, equals three times the moles of nitrogen utilized. Subsequently, the mass of magnesium needed is determined by multiplying the moles by its molar mass.
Response:
1. 16.54 grams.
2. 6.64 grams.
Clarification:
Greetings,
In this situation, the chemical reaction taking place is:
Thus, based on the provided data, the theoretical yield of C can be determined as:
Additionally, taking into account the principle of conservation of mass, the mass prior to the reaction is equal to the mass following the reaction, hence, the mass of B that was utilized amounts to:
Best regards.
Elemental zinc replaces copper
Explanation:
During this reaction, the zinc added to the copper sulfate solution has replaced the copper present in the compound.
This process is known as a single displacement reaction.
Zn + CuSO₄ → ZnSO₄ + Cu
This represents the reaction in the recycling process.
The reaction is influenced by the elements' positions within the reactivity series of metals.
- In a single displacement reaction, an element higher in the reactivity series displaces one that is lower.
- Zinc ranks above copper in this series, allowing it to react with sulfate.
- Consequently, copper is pushed out as a solid product in the solution.
- Elements positioned higher in this series exhibit greater reactivity
learn more:
Chemical reaction
Answer:
Calcium's atomic radius is roughly 175 pm.
Explanation:
We know that magnesium has an atomic radius of 150 pm.
The atomic radius of strontium measures 200 pm.
Since calcium's position is between magnesium and strontium in group 2 of the periodic table, its atomic radius should be roughly averaged between magnesium's and strontium's atomic radii because atomic radius is not constant.
Thus;
Calcium's atomic radius is approximately calculated as follows;
The average atomic radius is (200 + 150)/2 = 175 pm.
Answer:
Explanation:
Diethyl malonate possesses greater acidity compared to monocarbonyl substances (pKa=13) because its alpha hydrogens are linked to two carbonyl groups. Consequently, the malonic ester can be readily changed into its enolate ion by reacting it with sodium ethoxide in ethanol. When the malonic ester undergoes alkylation, a hydrogen atom in the alpha position becomes acidic, permitting another round of alkylation to yield a dialkylated malonic ester.
In this scenario, when diethyl malonate interacts with urea in the presence of sodium ethoxide base, the second alkylation step occurs within the molecule, producing a cyclic compound known as barbituric acid.
