Tabulate the calculated values of absorbance for each of the standard Cu2+ solutions along with the corresponding concentration (0.05, 0.1, 0.2, 0.5) for each.  CuSO4 Absorbance: %T 89.1 - A = 0.05 %T 81.9 - A = 0.09 %T 64.9 - A = 0.19 %T 40.9 - A = 0.39

Q: Titration of an oxalate sample gave the following percentages: 15.30 %, 15.59 % , and 15.57 % 1.…

A: Formula to calculate average                                          Average= ∑i=1nxin Where, xi is…

Q: A mixture of 8-hydroxyquinoline(Q) complexes of aluminum and magnesium weighed 1.856 g. When ignited…

A: The weight percent of a substance in a mixture can be calculated using the following formula-

Q: A solution is made from CaCl, and MgCl2 so that [Ca*²] = 0.00050 M, [Mg*²] = 0.00050 M. A 0.05M…

A: The sparingly soluble salts exist in equilibrium with its ions in the solution. The equilibrium…

Q: 3. The ethyl acetate concentration in an alcoholic solution was determined by diluting a 10.00-mL…

A:

Q: A RbOH solution is titrated four (4) times against potassium hydrogen phthalate (KHP; FW=204.224)…

A: The given data is:   Mass of KHP(g) Volume of RbOH(mL) Trial-1 0.5373  42.49  Trial-2 0.5856…

Q: 1. How do you prepare 500 mL of a ~0.10 M NaOH solution? What mass of NaOH(s) should you use?

A:

Q: Calculate the [FeSCN2+] using volumes of stock solutions. Presume that all the SCN– ions react.…

A: The data given is,

Q: What are the reactions (with phases) and their balanced equation for a.)AgNO3+Na2SO4?…

A: 2AgNO3(aq) + Na2SO4(aq) →Ag2SO4(s) + 2NaNO3(aq) Explanation According to the Solublity guidelines,…

Q: The following chemical equations shows the stepwise Formation Constant expression (K₁ toks) of each…

A: The stepwise formation constant of the given complex is as follows:

Q: Use the following atomic masses (in g/mol): Ca = 40.08; C = 12.01; O = 16; Na = 23; Cl = 35.45…

A: 200 mg sample of pure calcium carbonate was acidified and dissolved in 500 mL of solution. A 50 mL…

Q: Each of the insoluble salts below are put into 0.10 M hydrobromic acid solution. Do you expect their…

A: Polar species are soluble in water, while nonpolar species are soluble in oils and fats. Covalent…

Q: A sample containing both HCl (FW 36.45) and HNO3 (FW 62.98) had a density of 1.083 g/mL. A 10.00-mL…

A:

Q: How many mg of Ag2SO4 dissolve in 0.3 M, 500 mL of Al2 (SO4) 3 solution? Compare this solubility…

A: The question is based on the concept of common ion effect. it states that degree of dissociation of…

Q: alculate the amount of manganese (54.94 g/mol) from a processed ore using the following data.

A: Solution: Blank titration part: Here we have 0.1012 g of manganese ore. Which is digested with…

Q: How many mg of Ag2SO4 is soluble in 0.3 m, 500 mL solution of Al2(SO4)3? Compare this solubility…

A:

Q: mg Cefuroxime Sodium Powder for Injection with 6mL of sterile water for injection. The reconstituted…

A: Cefuroxime is an antibiotic and is a type of second generation cephalosporin and used for treatment…

Q: Explain why the product distribution is observed for the following reactions: Br Br KOtBu KOtBu 70%…

A: We have to explain the product distribution. Introduction: E2 elimination.

Q: The concentration of Fe²+ in a sample is determined by measuring the absorbance of its complex with…

A: We would use formula of absorbance given as :  A = ECl  where, E is molar absorptivity which depends…

Q: When you do DeltaT, why don't you calculate Tf-Ti for both substances but instead calculate Ti-Tf…

A:

Q: To make this KNOWN solution, 0.1632 g was mixed with water (to the mark) in a 100.mL volumetric…

A:

Q: The ethyl acetate concentration in an alcoholic solution was determined by diluting a 10.00-mL…

A: Answer is given below

Q: All changes sav When copper metal is added to silver nitrate in solution, silver metal and copper…

A: We can determine the mass of the silver produced from the balanced equation. The balanced equation…

Q: In an aqueous solution at 25 °C, if [H₂O] = 9.1 x 104 M, then [OH] is:

A:

Q: What is the molarity of a solution made from placing 0.2200 g tartrazine powder in a 1L volumetric…

A: Since both questions are different, we solve only first question according to the Bartleby…

Q: Write the expression for Kc for the reaction Fe₂S3(s) ⇒ 2 Fe3+ + 3 S² (aq) (aq) Kc = [2Fe³+1²…

A:

Q: Determine the concentration of Ca2+ in a solution obtained by treating solid CaSO3 with 0.479 M HCI.…

A: The balanced chemical reaction between CaSO3 and HCl is: CaSO3s+2HClaq→CaCl2aq+H2Ol+SO2g

Q: A solution of FeSCN2+ has an absorbance of 0.237.  What is its concentration?

A:

Q: 4. The bicinchoninic acid (BCA) assay is a non-specific assay that measures the quantity of protein…

A: BCA is one of the assay by the concentration of protein in a sample can be analysed and determined

Q: 3. What is the percentage strength of a reagent solution prepared by dissolving 1.5 oz of silver…

A: The percentage of AgCl = 9.0% (option c).

Q: Calculate the standard free energy change (AG") for the transfer of electrons from succinate to…

A: The two reactions are succinate <=> fumarate + 2H+ + 2e-ubiquinone + 2H+ + 2e- <=>…

Q: eq• Calculate Keq-

A: 1. An equilibrium reaction is that reaction which can not go to 100% completion but is at a…

Q: A 0.4108-g sample of primary-standard Na2 CO3 was treated with 46.50 mL of dilute perchloric acid.…

A:

Q: Place coefficients where needed to balance the following equation: (enter 1 if no coefficient is…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: 2 Ba2+ (aq) + Cr20,2 (aq) + H2O (1) =2 BaCrO4 (s) + 2 H* (aq) Dichromate forms orange aqueous…

A: The equilibrium reaction given is,

Q: 1. Sodium oxalate crystals (0.1234 g, MM=134) required 15.67 ml of KMNO, solution to titrate. Find…

A: the solution is as follows:

Q: Select the coefficients needed to balance this equation. KClO3 --> KCl + O2

A: In balanced chemical reaction number of each atom on reactant side is equal to number of each atom…

Q: 3. Use the following atomic masses (in g/mol): As = 74.92; O = 16; K = 39.1; Cr = 52; Na = 23; Cl =…

A:

Q: The proton balance equation for a solution of NagPO4 is O (H3O'1+ [H2PO1+ 3[H3PO4] - (OH'] + 3[PO,1…

A:

Q: A. The weight of 25 tablets of morphine sulfate (150 mg) is 3.075 g. If 0.3075 g was used in the…

A: Mass of morphine sulfate tablet taken for the assay = 0.3075 g  Volume of 0.023 N NaOH used to back…

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: 25 nm, which çan be used for the spectrophotometric determination of ammonia. OCF 2 OH + NH3…

A: Solution -

Q: A 10 mL sample containing cyanide (CN-) is analyzed. It is mixed with 10 mL 1%(m/v) HCl to prevent…

A: Given: Volume of sample is 10 mL. Volume of HCl is 10 mL. Volume of water is 25 mL. Final…

Q: What is the mass percent of Fe for each trial ?   Mass of (NH4)2Ce(NO3)6 (in 100.00 mL) =   4.5038…

A: The balanced chemical reaction between Fe2+ and Ce4+ is:   Fe2++Ce4+↔Fe3++Ce3+

Q: e product(s) fc

A:

Q: Bay Water Titration The concentration of Cl- in ocean water is about 500-600 mM. The baywater is…

A: In the provided scenario, a chemical analysis is performed to determine the chloride ion…

Q: Write a balanced chemical equation based on the following description: aqueous iridium(III) bromide…

A: