The vapor pressure of pure acetone (C3H6O) is 216 torr
1 answer:
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The ratio of the mass of compounds:
a. 2Na + Cl → 2NaCl = 46 + 70 → 46 : 70
b. HO + NaO → 2NaOH = 1 : 8 + 23 : 16 → 23 : 16 : 1
c. HCl + NaOH → NaCl + HO = 1 : 35 + 23 : 35 → 23 : 35 + 1: 8
What is a molecular mass?
Molecular mass refers to the total sum of the masses of the atoms or components that make up the molecule.
Calculation:
a. 2Na + Cl → 2NaCl
- The atomic mass of Na= 23
- The atomic mass of Cl= 35
(Na x 2) + (Cl x 2) → (Na x 2) : (Cl x 2)
(23 x 2) + (35 x 2) → (23 x 2) : (35 x 2)
46 + 70 → 46 : 70
b. HO + NaO → 2NaOH
- The atomic mass of H = 1
- The atomic mass of O= 16
- Atomic mass of Na= 23
(H x 2) : (O x 1) + (Na x 1) : (O x 1) → (Na x 2) : (O x 2) : (H x 2)
(1 x 2) : (16 x 1) + (23 x 1) : (16 x 1) → (23 x 2) : (16 x 2) : (1 x 2)
2 : 16 + 23 : 16 → 46 : 32 : 2
1 : 8 + 23 : 16 → 23 : 16 : 1
c. HCl + NaOH → NaCl + HO
- The atomic mass of H= 1
- The atomic mass of Cl= 35
- The atomic mass of Na= 23
- The atomic mass of O= 16
(H x 1) : (Cl x 1) + (Na x 1) : (Cl x 1) → (Na x 1) : (Cl x 1): (H x 2) : (O x 1)
(1 x 1) : (35 x 1) + (23 x 1) : (35 x 1) → (23 x 1) : (35 x 1) : (1 x 2) : (16 x 1)
1 : 35 + 23 : 35 → 23: 35 + 2: 16
1 : 35 + 23 : 35 → 23 : 35 + 1: 8
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