If, at equilibrium, the solution prepared in Problem #1 has an absorbance of 0.36, what is the Fe(SCN)2+ concentration, assuming that the absorptivity of Fe(SCN)2+ is 5150 L mol-1 cm-1 for 447-nm light? Group of answer choices d) 7.00 x 10-5  M b) 0.36 M c) 1854 M a) 1 M     This is problem 1: Remember that all solutions used in this experiment contain 0.50 M HNO3. What happens to the HNO3 concentration if two 10.0-mL solutions of 0.50 M HNO3 are combined together? Answer to #1 a) the HNO3 conc. stays the same

Q: titration with 11.13 mL of 0.1214 M NaOH. Calculate (a) the % N (14.007 g/mol) and (b) the %…

A: Sample mass = 0.4755 g Volume of H2SO4= 50.00 mL Molarity of H2SO4 = 0.05035 M Volume of NaOH =…

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A:

Q: Set the followong concentrations: [Fe3+ ] = 0.0 M [SCN-] = 0.0 M [FeSCN2+] = 0.0040

A: Equilibrium constant - characteristic of a particular chemical reaction at a specific temperature…

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Q: Given the following salts and their Ksp values: (1) Silver Bromide, with Ksp = 5.0 x 10-13 (2)…

A: The value of solubility product constant indicate the concentration of ions present in solution.…

Q: 5.00 mL of 7.00 x 10¯³ M Fe(NO3)3 (7.00 times 10 to the minus 3rd power MFe (NO3)3) is added to 7.00…

A: Molarity of Fe3+  ions = 7.00 × 10-3 M Total Volume = 5 + 7 + 5 = 17 ml = 0.017 L

Q: Calculate the molar Y(4-) concentration in a 0.040M EDTA solution buffered to pH 11?

A: The ligand ethylenediamine tetra acetic acid form a strong complexe with many metal ion. It is an…

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Q: A student performs the pka of an Indicator experiment with phenol red, and obtains the following…

A: Given, Wavelength = 560 nm Aln-= 0.712AHln=0.0003

Q: Beaker Wavelength of Maximum Absorption Absorbance at Maximum Wavelength Form of Indicator in…

A: To answer which form of indicator would give more accurate results, if the concentration of the…

Q: 4.00 mL of 4.00 x 103 M. Fe(NO3)3 (4.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to…

A: We have  mole is the amount of the substance that contains the same number of particles of the atom…

Q: A solution contains some or all of the ions Cu²+, Al³+, K, Ca²+, Ba²+, Pb²+, and NH₁. The following…

A: Here we have to predict the presence and absence of the following cations in the following given…

Q: A 15.00 mL sample of 0.355 M H3PO4 (Ka,1 7.52 x 10-3, Ka,2 6.23 x 10-8, Ka,3 2.1 x 10-13) is…

A: (a) For first equivalent point:                                 H3PO4       +        NaOH  ----->…

Q: 7.00 mL of 5.00 x 10-3 M. Fe(NO3)3 (5.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to…

A: We have to calculate the moles of Fe+3 at equilibrium.

Q: akeAssighmenytakeCovalenhtActivity.do?locator=assignment-take [References) A 55.0-mL sample of…

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Q: the pH of a buffer solutiont

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Q: small! X= 5.92x1 CH'J 9) Calculate the pH of a solution that contains 1.00 MHCN (K 6.2 x 10-¹) and…

A: Given: Ka for HCN = 6.2×10-10 Ka for HNO2 = 4.0×10-4 We have to calculate the pH of a solution that…

Q: 6.20 - 8.20

A: Buffer solution is the solution which resist the pH change by adding small amount of Strong…

Q: (i) Me3Sn. OEt Pd(PPH3)4/CO A (ii) Br Ph Pd(PPH3)4, KOH -B(OH)2 В Br +

A:

Q: 3. Calculate the molar solubility of Cr (OH)3 in a solution buffered at (a) a pH of 5.00 and (b) a…

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Q: The total volume must be close to 15.00 mL. Record the equilibrium concentrations and absorbances…

A: Sample A: Volume of Fe3+ used = Final volume-Initial volume=(19.53-12.38) mL=7.15 mLmillimoles of…

Q: What is the concentration of free Co3+ in 1.2642e-5 M Co(NO3)3 and 1.3948 M NH3? Co3+ + 6 NH3 →…

A: Concentration of Co(NO3)3 = 1.2642 x 10-5 M  Concentration of NH3 = 1.3948 M  Kf for the reaction =…

Q: 5.00 mL of 5.00 x 103 M Fe(NO3)3 (5.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to 7.00…

A: Given: Concentration of Fe(NO3)3 taken = 5.00 × 10-3 M Volume of Fe(NO3)3 solution taken = 5.00 mL…

Q: Virtual Lab Question: Phosphorus in urine can be determined by treating with molybdenum (VI) and…

A: Solution Absorbance 1.00 ppm P 0.205 2.00 ppm P 0.41 3.00 ppm P 0.615 4.00 ppm P 0.82…

Q: O What is the pM in a titration of 16.0 mL of 0.05 M Ca2+ with 0.05 M EDTA if the titration buffered…

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Q: 3.Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2-Tris or THAM] is a weak base frequently used to…

A: Given: Kb=1.2×10-6pKb= 5.92pKa=8.08 Volume of HCl= 100mL Concentration of HCl= 0.50M pH of buffer=…

Q: Consider the following scenerio in answering Questions 2 through 4: An equilibrium mixture of the…

A: This is an example of dilution law which state that moles of solute before and after dilution remain…

Q: calculate the p-value for each of the indicated ions in the following

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A: The solution is given below -

Q: What is the concentration of free Hg2+ in 2.6061e-4 M Hg(NO3)2 and 1.1005 M NH3? Hg2+ + 4 NH3 →…

A: Formation constant or binding constant is defined as the equilibrium constant for the formation of a…

Q: xt of cis-K[Cr(C204)2(H2O)2].2H2O= 6.36 g Mt of complex used in titration= 0.3 g xolume of KMNO4…

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Q: What volumes of 0.50 M HNO₂ and 0.50 M NaNO₂ must be mixed to prepare 1.00 L of a solution buffered…

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Q: Problem attached

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A: We have to calculate the molarity of Cu2+ ion

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A: Here we have to choose the incorrectly paired words and Lewis base in a complexation reaction-

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Q: I need hand written solution only

A: Here we have to explain which ligand will be best for solubilizing Fe2O3.

Q: Calculate the concentration of the following ions inequilibrium with 1.63*10-3 M Ba 2+.(a) SO4-2…

A: Since the solubility product values of the salts of barium are  a) BaSO4 => Ksp = 1.0842 × 10−10…

Q: Taking the Ksp of Zn(OH)2 as 4.0 x 10-3 and the Kf of [Zn(NH3)6] 2+ as 9.9 x 108 , determine how…

A: To solve this problem, we'll follow these steps: Write the balanced chemical equations for the…

Q: What is the concentration of free Hg2+ in 2.6061e-4 M Hg(NO3)2 and 1.1005 M NH3? Hg2+ + 4 NH3 →…

A: Mercury (II) is present in the +2 oxidation state in the given reaction. In HgNO32, mercury is…

Q: Calculate the ratio of CH3NH2 to CH3NH3Cl concentration required to create a buffer with pH = 10.16…

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Q: Find the amount in millimoles

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Q: 8.00 mL of 5.00 x 103 M Fe(NO3)3 (5.00 times 10 to the minus 3rd power MF e (NO3)3) is added to 4.00…

A: Answer: First of all we will calculate the number of moles of ferric ion (Fe3+) added into the…

Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.