Posted by Nicolai on Monday, October 1, 2012 at 6:20pm.
.3L of .02M solution contains .006 moles of solute.
So, take .006 * mol wt of solute to get the mass
ok.. thats what I had done before..
Na2s203 has a mass of 158.11g
so I get for 0.006 mol of Na2s203 = 0.9486 g or with 3 significant figures = 9.48 mg.
but this still comes up as wrong when I put it into my online portal for my lab.
The problem asks for mass Na2S2O3.5H2O. You calculated mass Na2S2O3. Add the 5 mols H2O to find the mass of the hydrated salt.
Related Questions
Chemistry - Can someone please help me complete these calculations for my lab; I...
Chemistry* - The following equation is given: S2O3 -2 + 2H +1 ---> S + ...
Chemistry - Copper(I) Iodide is synthesised by the equation: 2CuSO4.5H2O + 2KI...
Science- Chemistry - How do I figure these out? A solution of sodium ...
chemistry - Calculate the mass of the solid you must measure out to prepare 100 ...
Chemistry - 2 ml of 1M HCl 0 ml of H2O 3ml of .3M Na2S2O3 How do I find the ...
chemistry, - in analyzing household bleach. I have a flask that contains 10.00 ...
Chemistry - Hi, I'm really having trouble this this chemistry problem. I ...
Chemesitry! - Sodium thiosulfate, Na2S2O3, is used as a fixer in photographic ...
Chemistry - Hi DrBob, Sorry about that, I wasn't very clear! Can someone ...
For Further Reading
