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### a. Convert 0.599 mol of Na₃PO₄ to grams
1. Find the molar mass of Na₃PO₄:
- Sodium (Na): 3 atoms × 23 g/mol = 69 g/mol
- Phosphorus (P): 1 atom × 31 g/mol = 31 g/mol
- Oxygen (O): 4 atoms × 16 g/mol = 64 g/mol
- Total molar mass: 69 + 31 + 64 = 164 g/mol
2. Calculate the mass in grams:
- Given moles of Na₃PO₄ = 0.599 mol
- Mass = moles × molar mass
- Mass = 0.599 mol × 164 g/mol = 98.2 g
### b. Convert 62.8 grams of Pb(NO₃)₄ to moles
1. Find the molar mass of Pb(NO₃)₄:
- Lead (Pb): 1 atom × 207 g/mol = 207 g/mol
- Nitrogen (N): 4 atoms × 14 g/mol = 56 g/mol
- Oxygen (O): 12 atoms × 16 g/mol = 192 g/mol
- Total molar mass: 207 + 56 + 192 = 455 g/mol
2. Calculate the moles:
- Given mass of Pb(NO₃)₄ = 62.8 g
- Moles = mass / molar mass
- Moles = 62.8 g / 455 g/mol ≈ 0.138 mol
These calculations help convert between grams and moles using the substance's molar mass. If you need further clarification, feel free to ask!
### a. Convert 0.599 mol of Na₃PO₄ to grams
1. Find the molar mass of Na₃PO₄:
- Sodium (Na): 3 atoms × 23 g/mol = 69 g/mol
- Phosphorus (P): 1 atom × 31 g/mol = 31 g/mol
- Oxygen (O): 4 atoms × 16 g/mol = 64 g/mol
- Total molar mass: 69 + 31 + 64 = 164 g/mol
2. Calculate the mass in grams:
- Given moles of Na₃PO₄ = 0.599 mol
- Mass = moles × molar mass
- Mass = 0.599 mol × 164 g/mol = 98.2 g
### b. Convert 62.8 grams of Pb(NO₃)₄ to moles
1. Find the molar mass of Pb(NO₃)₄:
- Lead (Pb): 1 atom × 207 g/mol = 207 g/mol
- Nitrogen (N): 4 atoms × 14 g/mol = 56 g/mol
- Oxygen (O): 12 atoms × 16 g/mol = 192 g/mol
- Total molar mass: 207 + 56 + 192 = 455 g/mol
2. Calculate the moles:
- Given mass of Pb(NO₃)₄ = 62.8 g
- Moles = mass / molar mass
- Moles = 62.8 g / 455 g/mol ≈ 0.138 mol
These calculations help convert between grams and moles using the substance's molar mass. If you need further clarification, feel free to ask!
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