QUESTION 7 The absorbance of two chromate solutions at a set wavelength is given in the table. Which solution has a higher molarity of chromate ions? Solution Absorbance A 0.324 0.566 Solution A Solution B both have the same molarity can't be determined TS to saue all answers.

Q: Pls. refer to the given answer choices so that i will know if my solution is wrong

A: 100% undecayed  at time 0 .

Q: Calculate using 0.0500M EDTA, a. volume needed to titrate the Mg in 0.1975 g of MgCO3 (84.305 g/mol)…

A: Given data,Molarity of EDTA=0.0500MMass of Mg=0.1975gMolar mass of Mg=84.305g/mol

Q: 6. Consider the experimentally determined data for the following reaction: Time (s) (SO;Ch] (M)…

A: A question based on chemical kinetics, which is to be accomplished.

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Q: how to get the 0.571 M and 0.071 M?

A: Given,  Molarity of HCl = 1.0 M  Volume of HCl in L = 1.00 L  Molarity of NaHCOO = 1.5 M  Volume of…

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A:

Q: Q1: Calculate the mass needed to prepare 2.0L of 0.05M AGNO, (M. Mass 169.87g/mol) from its primary…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: The final part asks for pH

A:

Q: For which reaction below are the values of Kc and K, the same? O 2 SO3 (g) + N2 (g) 2 SO2 (g) + 2 NO…

A: Answer of the question given below,

Q: How can we determine the concentration of a strong acid or base solution accurately using a weak…

A: The answer explains the challenges involved in accurately determining the concentration of a strong…

Q: A student weighs out a 17.2 g sample of ZnSO4, transfers it to a 500. mL volumetric flask, adds…

A: mass of zinc sulfate (ZnSO4) = 17.2 gVolume of the solution = 500. mL = 0.500 LMolarity of the zinc…

Q: In which part of the UV-Visible spectrum are these - * excitations expected to be observed?

A: To describe in which part of UV-Vis spectrum does the given π→π* transitions occur.

Q: In a complexometric titration experiment: Determination of Water Hardness, solve for the missing…

A: Each mole of Ca2+ reacts with 1 mol of EDTA. Also, Moles =  Mass / Molar Mass

Q: + A photon of blue light has a frequency of 7.20 x 10¹4 Hz. Calculate the wavelength of this photon…

A: Frequency (v)= 7.20×10^14 hz =7.20×10^14 s^-1Speed of light (c)= 33×10^8 m/s

Q: Use the References to access important values if needed for this question. What is the pH of an…

A: The pH of a solution refers to the measure of the molar concentration of the H+ ions that are…

Q: 20. Which of the following alkyl halides will react the fastest (greatest rate of reaction) for an…

A: In 1st question, option G has fastest rate of reaction because here positive charge is most…

Q: Briefely explain the meaning of the following terms as they relate to this experiment. a) Titration…

A: The brief explanations are given below -

Q: The solubility of an ionic compound in water can be expressed in terms of the mass that will…

A: Mass of Ca( OH)2 = 0.238g Volume of solution= 0.217L Molar mass of Ca( OH)2 = 74.09 g/mol Ksp value…

Q: The equilibrium constant K. for the reaction 2A + B5C+D is 0.133 at a certain temperature. What…

A: Equilibrium constant ( Kc) is the ratio of concentration of products to concentration of reactants…

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A:

Q: Lime, CaO, can be produced in two steps as shown in the equations below. If the percentage yield of…

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Q: Br2+ Cl2: O 2.56 x 104

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium.

Q: Can you please solve this sub problems and show the step by step to the solution please and thanks

A:

Q: Calculate the volume of an FCC unit cell in terms of the atomic radius R

A: Calculate volume of an FCC in terms of R--

Q: State the intensity of light and classification of 1M ethyl alcohol   a. dim weak electrolyte b.…

A: Typically, light-sensitive devices (like our eyes or film in a camera) are sensitive to the power of…

Q: That's exactly what is my answer was, and got marked as a wrong answer I put 0.594 M HC2H3O2

A: To find out the molarity of the acetic acid.

Q: What volume. (in mL) of 0.400 mol/L sodium hydroxide, NAOH (aq), is needed to completely neutralize…

A: Given :-  Molarity of NaOH solution = 0.400 mol/L  Molarity of HCl solution = 0.261 mol/L  Volume of…

Q: Titration experiment is done to determine type of solution. a) T b) F Select one: True False

A: The statement,"Titration experiment is done to determine type of solution" is

Q: The Ksp for lead chloride (PbCl₂) is 1.6 × 10-5. Calculate the solubility of lead chloride in each…

A: The objective of the question is to determine the solubility of lead chloride in the given…

Q: Determine the CBOD and NBOD of 125 mg/L of CH;COOH solution. Assume the following reaction! CH3COOH…

A: Solution -

Q: Please, I want the same solution, but with a clear line Please help me

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Q: For questions # 1&2 Na + H₂O → NaOH + H₂ 1. When the above equation is correctly balanced using…

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Q: What is the color of 12 solutions?

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Q: What is a standard solution? Group of answer choices:  a) A solution that changes colors depending…

A: To explain: Standard solution.

Q: What is the molecular polarity of CO2 and why? It is polar, because its charges are distributed…

A: When the electrons are symmetric distributed then the shape will be symmetric.

Q: A buffer is prepared containing 0.800 molar acetic acid and 1.00 molar sodium What is its pH?

A:

Q: Data: Concentration of Acetic Acid in Vinegar Brand of Vinegar Volume of vinegar used (mL) % from…

A: Based on the given information, we have to calculate: 1. Moles CH3COOH 2. Molarity CH3COOH (mol/L)…

Q: 17.75 How many moles of sodium acetate must be added to 2.0 L of 0.10 M acetic acid to give a…

A: Given data set: We have 2.0 L of 0.10 M acetic acid We need to add moles of sodium acetate so that…

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.