Answer:
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Explanation:
Lewis symbols, which are also known as Lewis dot diagrams or electron dot diagrams, are diagrams that represent the valence electrons of an atom. Lewis structures, also known as Lewis dot structures or electron dot structures, are diagrams that represent the valence electrons of atoms within a molecule.
Answer:
3.02 atm
Explanation:
Step 1: Given data
- Initial pressure (P₁): 1.36 atm
- Initial volume (V₁): 4.24 × 10² mL
- Initial temperature (T₁): 25 °C
- Final volume (V₂): 1.91 × 10² mL
- Final temperature (T₂): 25 °C
Step 2: Find the final pressure
Since the temperature is constant, we can find the final pressure using Boyle's law.
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0.05 mol of oxygen atom.
Explanation:
Mass of potassium hydroxide = 2.79g
Unknown:
Number of moles = ?
Solution:
To solve this problem, find the number of moles of the potassium hydroxide.
Number of moles of KOH =
Molar mass of KOH = 39 + 16 + 1 = 56g/mol
Number of moles of KOH = = 0.05mole
Now,
1 mole of KOH contains 1 mole of oxygen atom
0.05 mole of KOH will have 0.05 mole of oxygen atom.
Learn more:
Number of moles brainly.com/question/1841136
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Gamma rays are most similar!