2007-04-02 05:58:59 · 2 answers · asked by shortydidi03 2 in Science & Mathematics ➔ Chemistry
The molar mass of lithium chloride is 42.39 g/mol
The number of moles of lithium chloride we have is 22.7/42.39= 0.5355 moles.
122.3g of water, if we assume has a density of 1g/ml, will have a volume of 122.3ml, which is equal to 0.1223 litres
The molarity is given as the ratio of number of moles of solute dissolved in 1 litre of water = 0.5355/0.1223= 4.3786 Molar.
2007-04-02 06:09:12 · answer #1 · answered by The exclamation mark 6 · 0⤊ 0⤋
22.7 grams of LiCl = 22.7 g/42.394 g/mole = 0.54 moles
122.3 grams water = 122.3 mL
Molarity = moles/liter, so
M = (0.54 moles/122.3 mL) * (1000 mL/liter) = 4.42 moles/liter
Now that I've show you how, I guess you can do the rest of your homework on your own . . .
2007-04-02 13:07:49 · answer #2 · answered by Dave_Stark 7 · 0⤊ 0⤋