Calculate first the number of moles of ethylene glycol by dividing the mass by the molar mass.
n = (6.21 g ethylene glycol) / 62.1 g/mol
n = 0.1 mol
Then, calculate the molality by dividing the number of moles by the mass of water (in kg).
m = 0.1 mol/ (0.025 kg) = 4m
Then, use the equation,
Tb,f = Tb,i + (kb)(m)
Substituting the known values,
Tb,f = 100°C + (0.512°C.kg/mol)(4 mol/kg)
<em>Tb,f = 102.048°C</em>
Mass, if you know what element you are working with.
Answer:
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Explanation:
<h2>Read this and then choose your options ✍️✍️</h2>
Answer:
1. H2O is a covalent bond, NaCl is an ionic bond
2. H2O uses hydrogen bonding (H-bonds), NaCl does not
3. H2O is liquid at room temperature. NaCl is solid.
Explanation:
