Posted by Lisa, Help needed! on Wednesday, December 8, 2010 at 1:20am.
The question tells us that the concentration of the solution is 4.00% w/w.
That is 100 g of the solution contains 4.00 g NaOCl.
or
That is 1000 g of the solution contains 40.0 g NaOCl
The volume occupied by 1000 g is
mass/density
1000g/1.02 g ml^-1 = 980.4 ml
Molar mass of NaOCl is 74.44 g/mol
Number of moles of NaOCl is
40.0 g/74.44 g/mol = 0.5373 mole
so molarity is
moles/volume =
Related Questions
chemistry - If 90 mL of laundry bleach containing a 5.0% w/v concentration of ...
chemistry - What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2...
chemistry - What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2...
Chemistry Help Please - Titration of a Sample of Household bleaches: The ...
Chemistry - A solution of household bleach contains 5.25% sodium hypochlorite, ...
chemistry - What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2...
Chemistry - If you are using 5.25% (mass/mass) bleach solution and you determine...
Chemistry - If you are using 5.25% (mass/mass) bleach solution and you determine...
chemistry - What is the molarity of a bleach solution containing 8.9 g of NaOCl ...
Chemistry - Hi DrBob, Sorry about that, I wasn't very clear! Can someone ...
For Further Reading
