Advanced Chemical Calculations and Problem-Solving
This page delves deeper into 10.sınıf kimya mol kavramı soru çözümü pdf with more complex problem-solving scenarios. It covers combustion reactions, acid-base reactions, and stoichiometric calculations involving gases and solutions.
The first problem involves the combustion of C₃H₈ (propane):
Example: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
The question asks to determine the mass of O₂ needed to completely combust 0.1 mole of C₃H₈.
The solution demonstrates how to use the balanced equation to determine the molar ratio and then convert to mass, resulting in 16g of O₂ required.
Another problem focuses on the reaction of copper with nitric acid:
Example: Cu(k) + 4HNO₃ → Cu(NO₃)₂ + 2NO₂ + 2H₂O
This problem requires calculating the ratio of NO₂ gas to H₂O produced when 6.4g of Cu reacts.
The solution shows how to determine the limiting reagent and calculate the moles of products formed, leading to a ratio of 0.2 mol NO₂ to 0.2 mol H₂O, or 1:1.
The final problem deals with the reaction between sodium hydroxide and sulfuric acid:
Example: 2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O
The question asks how much NaOH is needed to produce 144g of water.
This problem illustrates the use of stoichiometric relationships to calculate the required mass of reactant based on the desired mass of product. The solution shows that 320g of NaOH is needed.
Highlight: These problems demonstrate key skills in 10.sınıf kimyasal tepkimeler çözümlü sorular pdf, including balancing equations, using limiting reagents, and performing stoichiometric calculations.
