4.03 x 10²³ atoms
Explanation:
Given parameters:
Number of moles of FeTiO₃ = 0.67moles
Unknown:
Number of atoms = ?
Solution:
From the compound FeTiO₃ ;
1 mole of FeTiO₃ contains 1 mole of Ti atom
0.67 moles of FeTiO₃ will invariably have 0.67 moles of Ti atoms
A mole of any substance is the quantity of substance that contains the Avogadro's number of particles 6.02 x 10²³ particles
The particles are number of atoms, number of protons, neutrons, electrons, molecules e.t.c
1 mole of Ti = 6.02 x 10²³ atoms of Ti
0.67 moles of Ti = 0.67 x 6.02 x 10²³ = 4.03 x 10²³ atoms
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Answer:
Balanced net ionic equation;
2MnO₄⁻ + 16H⁺ + 5C₂O₄²⁻ → 2Mn²⁺ + 8H₂O + 10 CO₂
Explanation:
- This is an example of a redox titration where acidified potassium permanganate (KMnO₄) is titrated against oxalic acid (H₂C₂O₄).
- A redox reaction is a type of reaction that involves both reduction and oxidation.
- One reactant of the reaction gains electrons(reduction) while another loses electrons(oxidation).
- During the redox reaction, H⁺/KMnO₄ undergoes reduction while the oxalic acid undergoes oxidation.
- Therefore, KMnO₄ is the oxidizing agent while H₂C₂O₄ is the reducing agent.
- The net ionic reaction will be;
2MnO₄⁻ + 16H⁺ + 5C₂O₄²⁻ → 2Mn²⁺ + 8H₂O + 10 CO₂
- From the reaction, MnO₄⁻ is reduced to 2Mn²⁺ while C₂O₄²⁻ is oxidized to CO₂.
- Therefore, two moles of KMnO₄ will react with 5 moles of oxalic acid.
A joule is a unit of work
Hydrophobic. Since bilayer has hydrophobic tail as their core region, molecules can pass through the hydrophobic tail if they are also hydrophobic.
For a rapidly growing population is characterized by an increase in the number of young individuals, birth rates increased in comparison with mortality, and the age structure of the population gets the reproductive type In other words there is superiority of juveniles on the elderly and the relative decrease in mortality.
