Problem 4 It takes 0.50 moles of Br,0) to titrate 25.0 mL of H,S,0,(aq) in the reaction: + 4Br, + 5H,0 2so- + 8Br + 10H* What is the molar concentration of H,S,0,? Enter your answer in the box provided with correct units and sig. figs.:

3-Please help show work and use significant figures

I keep asking for help and Im getting rejected someone please help me I'm very confused Lab 1: Equilibrium Constant Determination   You will have to determine the equilibrium constant for the reaction between aqueous iron(III) ion and thiocyanate ion. The equilibrium equation is given below: Fe3+ (aq) + NCS– (aq) <---> FeNCS2+ (aq) yellow          colorless             red The absorbance of light is measured using a spectrophotometer. The higher the absorbance, the higher the concentration of FeNCS2+ present. At room temperature, 5.00ml of 0.200M iron(III)nitrate solution was mixed with 5.00ml of 0.200M potassium thiocyante solution. The absorbance of this mixture was 0.55. A 1cm thick cuvette was used. 1- What is the Beer-Lambert Law? The Beer-Lambert Law relates the attenuation of light to the properties of the material through which the light is travelling. In other words “The path length and concentration of a chemical are directly proportional to its absorption of light.” A…

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