How many moles of sugar are required to make 4 liters of a saturated solution of sugar having a concentration of 0.6 moles per liter?
2006-07-20 13:12:46 · 4 answers · asked by statistics graduate 1 in Science & Mathematics ➔ Chemistry
0.6mol x 4 (since there's 2 litres)= 2.4mol
2006-07-20 13:24:38 · answer #1 · answered by Etania 7 · 1⤊ 0⤋
Well, this sounds like a simple math question...?
4.0 (liters) * 0.6 (moles) = 2.4 (total moles in 4 liters)?
But I'm not into chemistry, so I might be off on my interpretation. But if you're saying 0.6 moles per liter and you have 4 liters, it seems like simple multiplication? Yeah?
But do you have to subtract out the amount of water displaced by the moles of sugar? If so the math might be slightly more difficult. This is just the easiest case, whereby we're not measuring based on mass or something. This is just adding the .6 mole to each liter. So you get 4 instances of 1 liter + 0.6 moles. Or a total of 4 liters AND 2.4 moles. But I don't know why they'd ask for significantly different answer from the one given. So, you're probably safe. ;o]
Cheers!
2006-07-20 13:20:06 · answer #2 · answered by Michael Gmirkin 3 · 0⤊ 0⤋
this one is not really chemistry, just a little arithmetic
think about it, if you want a concentration of .6 moles in each liter
how many moles do you need for 4 liters?
.6 moles for 1 liter
.12 moles for 2 liters
see where we're going here
4*.6=2.4 moles
2006-07-20 13:18:12 · answer #3 · answered by enginerd 6 · 0⤊ 0⤋
Molarity = Moles/liters
0.6 Molarity = ?moles/ 4 liters
0.6/1 = ?/4
cross multiply and get an answer of .6 x 4 = 2.4 moles of sugar.
2006-07-20 13:21:35 · answer #4 · answered by physandchemteach 7 · 0⤊ 0⤋