Counting Atoms: Write The Number Of Each Type Of Atom
Counting Atomswrite The Number Of Each Type Of Atom In The Following C
Counting Atoms write the number of each type of atom in the following chemical formulas: 1. NaCl 2. H₂SO₄ 3. KNO₃ 4. CaCl₂ 5. C₂H₆ 6. Ba(OH)₂ 7. NH₄Br 8. Ca₃(PO₄)₂ 9. Al₂(SO₄)₃ 10. Mg(NO₃)₂
Paper For Above instruction
The task requires analyzing a series of chemical formulas and calculating the number of each type of atom present within them. This exercise is fundamental in understanding chemical composition and molecular structure, providing insights essential for chemistry students and professionals alike.
Introduction
Understanding the composition of chemical compounds involves counting the atoms of each element within a molecule or formula unit. The chemical formulas provided encompass a variety of compound types, including simple molecules, ionic compounds, and polyatomic ions. The central concept in this analysis is interpreting chemical formulas using the convention of subscripts to determine the quantity of each atom.
Methodology
To determine the number of each atom, one must interpret the chemical formulas by identifying elements and their respective subscripts. If no subscript is present, it is understood to be one atom of that element. For compounds containing parentheses followed by a subscript, multiply the number of atoms within the parentheses by the subscript outside.
Analysis of Each Compound
1. NaCl (Sodium chloride):
- Na: 1 (implicit, no subscript)
- Cl: 1
2. H₂SO₄ (Sulfuric acid):
- H: 2
- S: 1
- O: 4
3. KNO₃ (Potassium nitrate):
- K: 1
- N: 1
- O: 3
4. CaCl₂ (Calcium chloride):
- Ca: 1
- Cl: 2
5. C₂H₆ (Ethane):
- C: 2
- H: 6
6. Ba(OH)₂ (Barium hydroxide):
- Ba: 1
- O: 2 (since (OH)₂ means two hydroxide groups)
- H: 2
7. NH₄Br (Ammonium bromide):
- N: 1
- H: 4
- Br: 1
8. Ca₃(PO₄)₂ (Calcium phosphate):
- Ca: 3
- P: 2 (since (PO₄)₂ means two phosphate groups)
- O: 8 (4 atoms within each PO₄ group, multiplied by 2)
9. Al₂(SO₄)₃ (Aluminum sulfate):
- Al: 2
- S: 3 (each SO₄ group contains 1 S; multiplied by 3)
- O: 12 (each SO₄ contains 4 O atoms; 3 groups, so 4 × 3 = 12)
10. Mg(NO₃)₂ (Magnesium nitrate):
- Mg: 1
- N: 2 (each NO₃ group has 1 N; multiplied by 2)
- O: 6 (each NO₃ group has 3 O; multiplied by 2)
Conclusion
By systematically analyzing each formula, we've determined the count of each atom present. This exercise emphasizes the importance of understanding chemical notation and conventions. Accurate atom counting is crucial for various applications, including balancing chemical equations, calculating molecular weights, and understanding reaction mechanisms.
References
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