Determine the grams of ethylene glycol (C2H4(OH)2) which must be dissolved in 2500 g of water to make...?

Determine the grams of ethylene glycol (C2H4(OH)2) which must be dissolved in 2500 g of water to make a 4.78m solution.

Answer:
1g of water = 1 ml of water = 1 cm3 of water

Moles=concentration X volume(in dm3)
Mole = 4.78 X (2500/1000) (divide by 1000 to get cm3 in to dm3)
Moles of ethylene glycol = 11.95mol

Mass (g) = Moles X Mr
Mass = 11.95 X 62
Mass = 741g
Mass of ethylene glycol in 2500ml of water to make 4.78M solution = 741g.

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Determine the grams of ethylene glycol (C2H4(OH)2) which must be dissolved in 2500 g of water to make...?

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