The gases we create are adding to that blanket making sun light harder to escape,so the world heats up due to this addition to the layer
Missing question: <span>The liquid used in automobile cooling systems is prepared by dissolving ethylene glycol (HOCH2CH2OH) in water. Ethylene glycol has a molar mass of 62.07 g/mol and a density of 1.115 g/mL at 50.0°C.
If we use 100 mL of solution:
V(</span>ethylene glycol - C₂H₆O₂) = 0,54 · 100 mL = 54 mL.
V(water) = 0,46 · 100 mL = 46 mL.
m(C₂H₆O₂) = 54 mL · 1,115 g/mL = 60,21 g.
n(C₂H₆O₂) = 60,21 g ÷ 62,07 g/mol = 0,97 mol.
m(H₂O) = 46 mL · 0,988 g/mL = 45,45 g.
n(H₂O) = 45,45 g ÷ 18 g/mol = 2,525 mol.
mole fraction of solvent: 2,525 mol / (2,525 mol + 0,97 mol) =0,722.
Raoult's Law: p(solution) = mole fraction of solvent · p(solvent).
p(solution) = 0,722 · 92 torr = 66,42 tor.
The type of approach Rob is taking is eclectic because he is using more than one different technique in his therapy.
Answer:
Mass = 51.12 g
Explanation:
Given data:
Mass of lithium nitride = 32.9 g
Mass of water needed = ?
Solution:
Chemical equation:
Li₃N + 3H₂O → NH₃ + 3LiOH
Number of moles of lithium nitride:
Number of moles = mass/ molar mass
Number of moles = 32.9 g/ 34.83 g/mol
Number of moles = 0.945 mol
Now we will compare the moles of water and lithium nitride.
Li₃N : H₂O
1 : 3
0.945 : 3×0.945 = 2.84 mol
Mass of water:
Mass = number of moles × molar mass
Mass = 2.84 mol × 18 g/mol
Mass = 51.12 g
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