How will mistakenly using solution 1 to calibrate the spectrophotometer, instead of the blank affect the calcualted concentration of FESCN2+ at equilibrium and the calculated concentrations of Fe3+ and SCN- uncomplexed at equilibrium?  The blank contained 5.00mL of 0.00200 M Fe(NO3)3 (in 0.1M HNO3) and 5.00mL of 0.1 M HNO3. Solution 1 contained 5.00mL of Fe(NO3)3 (in 0.1M HNO3), 1.00mL of 0.00200 M NaSCN (in 0.1 M HNO3) and 4.00mL 0.1M HNO3.  Fe3+(aq)+SCN-(aq)->FeSCN2+(aq)

Q: 8.00 mL of 6.00 x 10-3 M Fe(NO3)3 (6.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to…

A: We have to calculate the initial moles of SCN-.

Q: Calculate the molar solubility of SrC₂O4 in a solution that has a fixed H3O+ concentration of (Ksp…

A: Answers: (a) Molar solubility = 6.42 x 10-7 M (b) Molar solubility = 6.55 x 10-8 M (c) Molar…

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: 7.00 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 6.00…

A: Initial Molarity of Fe3+ solution = 5.00×10-3mol/L Initial Volume of Fe3+ solution = 7.00 mL…

Q: An antibody (Ab) can bind to its antigen binding site (B) with a high affinity (large negative AG°).…

A:

Q: Each equilibria has several disturbances. Each one needs to be addressed separately. For each…

A: Answer:Le-chatalier's principle states that on changing any parameter of the system, reaction shifts…

Q: alculate the equilibrium isothiocyanatoiron(III) ion concentration, [FENCS4"leq you will report when…

A: The reaction between Fe3+ and SCN- for the formation of FeNCS2+…

Q: 6.00 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: Volume of Fe(NO3)3 = 6.00 mL                             [Fe(NO3)3] = 5.00 * 10-3 M…

Q: the moment of mixing. If, by chance, a pre 10-11. Given this information, will a precipi cause Q =…

A: Given,  Molarity of Mg(NO3)2 = 1.38×10-4 M Molarity of NaF = 1.76 ×10-4 M Solubility equilibrium…

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: 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: A student is calculating the concentration of her standard solutions in order to create the…

A: Given: Volume of Fe3+ = 2.00 mL Concentration of Fe3+ = 0.183 M Volume of SCN- = 225 μL = 0.225 mL…

Q: A solution was prepared by mixing 4.00mL of 2.00 x 10-3 M Fe(NO3)3 and 3.00mL of 5.00 x 10-3 M NaSCN…

A: The balanced equilibrium reaction is: Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq) ; Kc = 148.4575  The average…

Q: An aqueous solution is prepared in which 0.00113 mol Ni(NO3)2 and 0.484  mol NH3 are dissolved in a…

A:

Q: A solution containing Mg2+ was buffered to pH 9.97 and titrated with EDTA. Eriochrome black T, with…

A: Eriochrome black T is a diprotic acid, represented as H2E.

Q: 19. What is the experimental K of CACO, if the residue after evaporation of a - 1.00 L saturated…

A: Here we have to determine Ksp of CaCO3 if the mass of residue obtained after 1L saturated solution…

Q: Calculate the molar solubility of SrC2O4 in a solution that has a fixed H3O+ concentration of (Ksp…

A: The objective of the question is to calculate the molar solubilty of .

Q: Equilibrium Concentration Fe[SCN]?* Vol of Fe* Vol of SCN- 0.05 M HNO, (mL) (mL) (mL) 10.00 0.00…

A: The molarity of Fe(NO3)3 solution is 0.200 M. The molarity of NaSCN solution is 0.002 M.

Q: 200.0 ml of 0.200 M Na3PO4, is added to 150.0 ml of 0.250 M Ca(NO3)2, and a precipitate result?…

A:

Q: 8.00 mL of 6.00 x 10-3 M Fe(NO3)3 (6.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to…

A: Given that : Given that :Initial volume of Fe(NO3)3 = 8.00 mLMolarity of  Fe(NO3)3 =…

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: 4. The molar absorptivities of the indicator weak acid HIn (K₁ = 1.42 x 105) and its conjugate base…

A:

Q: A second calibration standard solution of an iron(III) salicylate complex was prepared in two steps.…

A:

Q: Ksp

A:

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: (4) Assume that the change in concentration of N2O4 is small enough to be neglected in the following…

A: If the value of kc is very small, it indicates that only a small amount of the reactant is converted…

Q: What is the Cl- concentration just as Ag2CrO4 begins to precipitate when 1.0 M AgNO3 is slowly added…

A: Interpretation- Concentration of Cl- when AgCrO4 starts to precipitate Concept introduction-…

Q: 7. If the equilibrium constant of binding of NADH to an enzyme [E] is 2.7=2,7 v Ko =…

A: The concentration of E is calculated in the unit of molar as follows:

Q: What is the molar solubility of Ag2CO3 in an aqueous solution that is buffered to a pH of 2.37?…

A: Given: pH = 2.37  Ksp for Ag2CO3 = 8.1 x 10-12 K1 H2CO3 = 4.45x10-7 K2 for HCO3- = 4.69x10-11 Kw =…

Q: 7.00 mL of 8.00 x 103 M Fe(NO3)3 (8.00 times 10 to the minus 3rd power M Fe (NO3)3) is added to 6.00…

A: Total concentration of [Fe(SCN)2+] at equilibrium = 1.00×10-4 Thus the concentration of Fe3+ at…

Q: Solid KSCN was added to a(2.20x10^0) M Co2+ solution so that it was also initially (2.20x10^0) M…

A:

Q: What is the color of the complex formed from the reaction of Co2+ and quercetin? Does the complex…

A: The reaction between Co2+ and  Quercetin yields a brownish yellow coloured complex at pH 6.4 using…

Q: Calculate the molar solubility of AgSCN (Ksp = 1.1 x 10-12) in a solution maintained at pH 9.00 and…

A:

Q: For the Fe(III) thiocyanate system at equilibrium, if 10 drops of 0.1 M SCN- solution were added,…

A: The question is asking about the effect of adding more thiocyanate ions (SCN-) to a system at…

Q: Calculate the M of the malonic in the sample.

A: 20 mL aliquot of malonic acid treated with 10 mL of 0.25 M Ce4+ Excess Ce4+ titrated with Fe2+…

Q: lodine is sparingly soluble in pure water. However, it does 'dissolve' in solutions containing…

A: The equilibrium constant (Keq) of a reaction is the ratio of the product of the molar concentration…

Q: It is found that 8.70e-09 g of Ga(OH)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate…

A:

Q: It was found that an equilibrium solution contained 3.00 x 10-4 M Fe3+ (3.00 times 10 to the minus…

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical…

Q: A student is calculating the concentration of her standard solutions in order to create the…

A: Given: Volume of Fe3+ = 2.00 mL Concentration of Fe3+ = 0.194 M Volume of SCN- = 200 μL = 0.2 mL   (…

Q: It was found that an equilibrium solution contained 3.00 × 10-4 M Fe3+ (3.00 times 10 to the minus…

A:

Q: A solution containing Mg2+ was buffered to pH 9.75 and titrated with EDTA. Eriochrome black T, with…

A: EBT is used as metal ion indicator.

Q: (v) At what pH would the given concentrations of Ce3, Ce*, Mn2*, and MnO4 to be in Activ Go to…

A: Given as  The solution contains 0.100 M Ce3+; 1.00*10-1 M Ce4+; 1.00*10-4M Mn2+; 0.100 M MnO4- and…

Q: 11) Will a 0.15 M solution of NH3 be sufficient to keep Zn2+ from precipitating from a solution of…

A:

Q: Calculate the equilibrium concentrations of all species when 10 mL of 0.90M Fe2+ is mixed with 10 mL…

A: First we have to find initial concentration all the species just after mixing. Total volume, Vt =…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.