-p-saveexp⁢= 104E03&de;:RNTE0W81 PART 2 - H2SO4 Titrations volume of H2SO4 25

Question

-p-saveexp⁢= 104E03&de;:RNTE0W81 PART 2 - H2SO4 Titrations volume of H2SO4 25.00 mL. Make sure to get this number correct and use it correctly it is important. Unknown Number 1076 First Determination Save&Continue; Burette Final Volume 27.58 mL Burette Initial Volume 555 mL Volume NaOH 22.03 mL culationf moles 2 NaOH + H,SO4 Na SO, +2 H20 'NaOH-H2SO,-Na2SO4 + 2 H2O you calculated the number of moles of NaoH used in the first titration. moles of H2504- molarity x volume 0.05 M x 0.025 L= 0.0012 moles H2SO4 you need 2 moles of NaoH for every 1 mole of acld otal number of mol of NaOH 2 46-3 mol used in the first titration

Explanation / Answer

average concentration of H2SO4 = 0.054 M

Molarity (M) = w/M*1000/V in ml

Parts per thousand(PPT) = mass of solute / mass of solution *10^3

                        = W/v*10^3

if density = 1 g/cc , volume of solution = mass of solution .

so that,

Molarity (M) = ppt/M

ppt = Molarity*M

M = molarmass of H2SO4 = 98 g/mol

concentration of H2SO4 IN PPt = 0.054*98

           = 5.292 PPT

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