Sea water contains roughly 28.0g of NaCl per liter.What is the molarity of sodium chloride in Sea water?
2007-12-15 08:59:17 · 4 answers · asked by Aaron C 3 in Science & Mathematics ➔ Chemistry
Atomic weights: Na=23 Cl=35.5 NaCl=58.5 Let sea water be called S.
28.0gNaCl/1LS x 1molNaCl/58.5gNaCl = 0.479 mole NaCl per L. To three significant figures.
2007-12-15 09:10:07 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
the quantity of any prism is the area of the backside x precise. subsequently the backside is a circle, the area of a circle = pi x r^2 (radius = r). Then multiply with the aid of precise to get volume. In calculating your volume you have used mm and cm. the quantity has gadgets of mm^2 cm!! As there are 10 mm in a cm then multiplying with the aid of a hundred turns the respond into cm^3. a million mL=a million cm^3. consequently the respond is given in g/mL. it is way less complicated to regulate your cylinder dimensions to cm earlier you initiate up after which you will not ought to multiply with the aid of a hundred on the precise.
2016-12-17 19:04:13 · answer #2 · answered by ? 4 · 0⤊ 0⤋
NaCl=molarmass=58.44
change grams to moles
28grams/58.44=.4791 moles
Molarity= moles of solute/liters of volume
.4791/1 liter= .4791 M
2007-12-15 09:03:28 · answer #3 · answered by loone 2 · 0⤊ 0⤋
(x) (1.00 L) = 28.0 g / 58.45 g mol¯1; x = 0.479 M
Hope this helps!!
2007-12-15 09:02:29 · answer #4 · answered by Anonymous · 0⤊ 0⤋