An automobile antifreeze solution contains 2.90 kg of ethylene glycol, , and 2.2

Question

An automobile antifreeze solution contains 2.90 kg of ethylene glycol, , and 2.20 kg of water. Find the mole fraction of ethylene glycol in this solution. What is the mole fraction of water? 1)Mole fraction of ethylene glycol = 2)Mole fraction of water = An automobile antifreeze solution contains 2.90 kg of ethylene glycol, , and 2.20 kg of water. Find the mole fraction of ethylene glycol in this solution. What is the mole fraction of water? 1)Mole fraction of ethylene glycol = 2)Mole fraction of water = An automobile antifreeze solution contains 2.90 kg of ethylene glycol, , and 2.20 kg of water. Find the mole fraction of ethylene glycol in this solution. What is the mole fraction of water? 1)Mole fraction of ethylene glycol = 2)Mole fraction of water =

Explanation / Answer

Number of moles of ethylene glycol , n = mass/molar mass

= 2.90x103 g / 62.07(g/mol)

= 46.7 mol

Number of moles of water , n' = mass/molar mass

= 2.2090x103 g /18(g/mol)

= 122.2 mol

Total number of moles , N = n + n' = 168.9 moles

Mole fraction of ethylene glycol , X = n / N =0.276

Mole fraction of water , X' = n'/N = 0.724

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