The total volume of the solution is 10 mL. Calculate the initial concentration of each of the following components: I- , H2O2 , S2O3 2- , MoO4 2-
1) 2.0 mL of Na2S2O3 at 1mM
2) 2.0 mL of KI- at 0.060M
3) 4.0 mL Distilled H20
4)2.0 mL of H2O2 at 0.040M
I just don't know how to get the concentration of I- or the others when their compounds (KI-) are what was added.
The total volume of the solution is 10 mL. Calculate the initial concentration of each of...
Concentration 1.00 M of NaOH Volume of Solution 2.5 mL added to solution 4.0 mL added to solution 2.00 M of Caci, 2.0 mL added to solution 0.75 M of K,POL Each of these three solutions are mixed into a beaker, find the molarity of each of the three individual solutions in the entire solution.
Use these 2 reactions to answer Question 4: 2Cu2+ + 4KI → 2CuI + I2 + 4K+ (rxn 1) I2 + 2Na2S2O3 → 2NaI + Na2S4O6 (rxn 2) For rxn 1, 10.0 mL of a Cu2+ solution of unknown concentration was placed in a 250 mL Erlenmeyer flask. An excess of KI solution was added. Indicator was added and the solution was diluted with H2O to a total volume of 75 mL. For rxn 2, the solution from rxn 1...
In this lab we will be expressing rate as a change in concentration of reactants over time. In order to calculate this, we need to know the initial concentrations of our reagents after they are combined but before the reaction occurs. This is a dilution process. Recall that the calculation for a dilution is accomplished using the relationship M1V1 = M2V2. If the [S2O3 2- ] is initially 2.49x10-4 M, and the reaction takes 145 seconds for the solution to...
Q2. A. Calculate the volume in ml of a 1.72 M Ca(OH), solution required to react with a 250 ml of a 1.8 M H3PO4 solution in anacid-base reaction. (use short-cut technique without balancing) H3PO4(aq) + Ca(OH)2(aq)Ca3(PO.). (aet) + H20 unbalanced B.Calculate the volume of solution required to prepare 2.0 MCa3(PO4)2 by dissolving 62 grams Ca3(PO4)2 in water. Ca=40 0=16 P=31 C. In dilution, what volume of 4.0 M HNO3 (aq) stock (initial) solution is required to prepare a 3.0...
How do I calculate the Rate of Reaction and the Relative Rate of Reaction? 0.04M 0.1M Initial I Concentration Initial S2082- Concentration Show a calculation of how you calculated the rate of reaction Rate of Reaction Use M/s to represent (mol/L)/s Show a calculation of how you calculated the relative rate of reaction Relative Rate of Reaction Reaction 1 Save&Continue Time to Colour Change 948 Numeric answers include a number followed by units. Nothing else. Pay attention to precision. Use...
The initial concentration of hydrochloric acid, HCl, is 12 M. I want to dilute this solution to get 500. 5. 0 mL of a 1.5 M solution. How many mL of the concentrated HCI must I use? 6. How many moles of sodium carbonate are contained in 200.00 mL of an 0.835 M solution of Na2CO3? 7. For the following reaction: 3 Cu(o+ 4 HNOs (a)3 Cu(NO,)2 (0)+2 NO20)+2 H20 What volume of 0.285 M HNOs is required for complete...
Volumetric Determination of a Sulfuric Acid Solution Initial concentration: assumed 6M H2SO4 Trial 1 Trial 2 Molarity of NaOH (aq) 0.2053 M 0.2053 M Initial burette reading, mL 18.50 mL 28.30 mL Final burette reading, mL 29.50 mL 39.10 mL a) Moles of NaOH added 2.258 moles 2.217 moles b) Moles of H2SO4 titrated ? ? Trial 1: a) Final Volume - Initial Volume = Volume 29.50 mL - 18.50 mL = 11.00 mL Moles = molarity x volume Moles...
How do you find the initial concentration if you are only given the initial volume and final volume? I have tried using the V(i) x C(i) =V(f) x C(f) equation but it needs at least 3 figures so I'm a bit lost right now. DILUTION WORKSHEET Solution #1 Concentration = 0.0232 0% Solution in volumetric flask before water is added to the line Solution in volumetric flask after water has been added to the line Diluted Solutions V #3 18.00mL...
based on this datas how can I find the concentration of cu2+ of each standard,however I used 1.000mg/ml standard solution of cu2+ how to find the concentration of each standard solution based on the data...the concentration of cu is 1mg/ml DATA Volume of Standard Cur Solution Added to Flasks #5 #4 #3 #2 #1 Final Volume 3 initial Volume Volume Used Volume of H-O Added to Flasks #4 #3 #2 om 5.om 34 m ug.lom Final Volume Initial Volume ocom...
4- (a) Calculate the concentration of Cd2+ ion in a solution prepared by mixing 2.0 mL of 1 M CA(NO3)2 solution with 1.0 L of 4.0 M NH3 solution. [Assume that the volume does not change after the addition of 2.0 ml of 1 M Cd(NO3)2] (b) Will you be able to see Ca(OH)2(6) precipitate in the solution? (Kr for Ca(NH3)42+ = 1.0 x 107, Kb for NH3 = 1.8 x 10-5; Ksp for Ca(OH)2 = 5.9 x 10-15 Cd2+...