Undiluted solution:
% Transmission of Cobalt Chloride: 31.62%
OD of undiluted solution (OD = 2 - log10 (%T)):
Diluted solution (1:10):
% Transmission of Cobalt Chloride: 89.13%
OD of undiluted solution (OD = 2 - log10 (%T)):
Diluted solution (1:100):
% Transmission of Cobalt Chloride: 98.86%
OD of undiluted solution (OD = 2 - log10 (%T)):
1) OD = 2 - log10(%T) = 2 - log10(31.62) = 2 - 1.5 = 0.5
2) OD = 2 - log10(%T) = 2 - log10(89.13) = 2 - 1.95 = 0.05
3) OD = 2 - log10(%T) = 2 - log10(98.86) = 2 - 1.995 = 0.005
Undiluted solution: % Transmission of Cobalt Chloride: 31.62% OD of undiluted solution (OD = 2 -...
Reaction 1 (10 mL undiluted 1.0% IKI and 5 mL undiluted 3% H2O2) Reaction 2 (10 mL diluted 0.5% IKI and 5 ml undiluted 3% H2O2) Reaction 3 (10 mL undiluted 1.0% IKI and 5 mL diluted 2.25% H2O2) 13. Answer the following. ( a) How many moles of H2O2 are present in Reactions 1 and 2? Show your work (include units). Hint: The initial H2O2 solution is 3% m/v (mass/volume) hydrogen peroxide in water. That means that 3 g...
PLease help!! Reaction 1 (10 mL undiluted 1.0% IKI and 5 mL undiluted 3% H2O2) Reaction 2 (10 mL diluted 0.5% IKI and 5 ml undiluted 3% H2O2) Reaction 3 (10 mL undiluted 1.0% IKI and 5 mL diluted 2.25% H2O2) How many moles of I3K are present in Reactions 1 and 3? Show your work (include units). Hint: The initial I3K solution is 1% m/v (mass/volume) potassium triiodide in water. That means that 3 g H2O2 are present in...
1. A series of solutions, containing cobalt (I1) chloride were prepared with concentrations shown below. Using PhET Simulation find the absorbance values corresponding to each solution at the preset value of wave length 549 nm, using 1 cm wide cuvette. Concentration of Co (II), mM 121 98.0 60.0 24.0 15.0 Absorbance Plot a calibration line Absorbance versus Concentration. From the graph determine the specific absorptivity. 2. Using the data you obtained from the graph in the previous problem determine the...
What is the name of [Co(en)2(H2O)2]Cl2? Diaquadi(ethyldiamine)cobalt(II) chloride Diaquadiethylcobalt(III) chloride Cobalt(II)diaquabis(ethylenediamine) chloride d Diaquabis(ethylenediamine)cobalt(II) chloride Diaquadiethylcobalt(II) chloride
Question 17 7 pts What is the name of [Co(en)2(H2O)2]Cl2? Diaquabis(ethylenediamine)cobalt(II) chloride Diaquadi(ethyldiamine)cobalt(II) chloride O Cobalt(II)diaquabis(ethylenediamine) chloride Diaquadiethylcobalt(II) chloride O Diaquadiethylcobalt(III) chloride
1. Calculate Calcium Chloride Cobalt CoCl2, (MM35.39g / mol) necessary to prepare 50.0 mL of a 0.55 M solution in CoCl2. 2. Calculate the volume of the solution 0.75M of CoCl2 needed to prepare 100 mL of a 0.15 M solution in CoCl2. M1 V1 = M2 V2
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