Average concentration of NaClO in bleach = (Trial1 + Trial2 +Trial 3)/3 = (0.04588 + 0.0434 + 0.04526)/3 = 0.0448 mol/L •Determine the mass percentage of NaClO in commercial bleach (mass of NaClO/mass of bleach solution). Assume the density for bleach is 1.00 g/mL. Remember:you were using diluted 1:10 bleach solution.
How do you find the molarity of bleach?
Problem: Calculate the molarity of hypochlorite ion when 1.00 mL of commercial bleach is added to 25.00 mL of dye solution.
- moles OCl- = 0.07052 mol. Calculate volume (in L) of solution:
- volume = 0.0926 L. Calculate molarity of the solution:
- molarity = 0.7617 M.
- M2 = 0.0293 M.
What is commercial bleach molarity?
Most commercial bleach contains 5.25 – 8.25 % w/w sodium hypochlorite, so a 1:10 dilution will produce a solution that is a viable for disinfection purposes (0.525 – 0.825 % w/w).
What is the molar mass of bleach?
74.44 g/mol
Sodium hypochlorite/Molar mass
What is the meaning of W V?
By definition: % (W/V) Percent of weight of solution in the total volume of solution. Percent here is the number of grams of solute in 100 mL of solution.
Is bleach a redox reaction?
This process is called decolorizing or bleaching. Natural stains as well as some dyes produced from grass come from chemical compounds called chromophores. Ordinary household bleach, sodium hypochlorite (NaClO), acts on a stain through the chemical process called oxidation reduction, or redox reaction.
What is chemical formula for bleach?
NaClO
Sodium hypochlorite/Formula
What is the molarity of Na2S2O3?
0.005 mol/L
A solution of sodium thiosulfate with an approximate molarity of 0.005 mol/L was prepared by dissolving 1.24 g sodium thiosulfate pentahydrate, Na2S2O3.5H2O (FM = 248.18) in water to make 1.000 L.
What makes sodium hypochlorite a liquid bleach?
Sodium hypochlorite is a chemical compound with the chemical formula NaClO. It is also known as liquid bleach. It consists of hypochlorite anion and sodium cation. It usually appears as a pale greenish yellow dilute solution.
What is the chemical formula for sodium chlorine bleach?
It is usually called bleach, because it is the active ingredient in bleach. The chemical formula is NaClO and consists of one atom of sodium (Na), one atom of chlorine (Cl) and one atom of oxygen (O).
What kind of odour does liquid bleach have?
It is also known as liquid bleach. It consists of hypochlorite anion and sodium cation. It usually appears as a pale greenish yellow dilute solution. It is an anhydrous unstable compound which can decompose explosively. It has a sweetish and chlorine-like odour.
How is chlorine gas used to make Bleach?
Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized to the hypochlorite ion present in a solution, ClO{, and some is reduced to the chloride
