Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages    What is the relationship between the color of a solution and the wavelengths the solution absorbs?

Q: 2. Consider a deuterium atom (1 electron, 1 deuteron). Sketch the E vs. B, diagram, including those ...

A: EPR is electron spin resonance which is used to study the species containing unpaired electrons. The...

Q: N=D C CH3

A:

Q: If 25 grams of methane, CH 4, and 30 g of ammonia, NH 3, are combined w/ excess oxygen, how much met...

A:

Q: Seoyeon needs to prepare a 250 mL solution of 0.1000 M Na2CO3. Which glassware should she use to pre...

A: All the instruments mentioned can be used to measure the volume of the solution. Although for titrat...

Q: To determine the melting point of aspirin, Gerald placed the sample in a capillary tube tied to a th...

A:  To determine the melting point of aspirin, Gerald placed the sample in a capillary tube tied to a t...

Q: When cobalt chloride is added to pure water, the Co2* ions hydrate. The hydrated form then reacts wi...

A: THIS CAN BE UNDERSTAND BY CFSE CALCULATION

Q: Codeine can treat pain and cough but has a high risk for addiction and dependence. Which of the foll...

A:

Q: Which of the following glassware is best used for slow dispensing of 47.00 ml of a solution? (A Grad...

A: Solution is made up of solute and solvent.Solute is present in small amount and solvent is present i...

Q: For the following reaction, 24.2 grams of calcium hydroxide are allowed to react with 27.4 grams of ...

A: Given that, mass of Ca(OH)2 = 24.2 g , molar mass = 74 g mol-1  mass of HCl = 27.4 g , molar mass = ...

Q: Calculate the smallest orbit of the electron in the H atom.

A: In this question, we have to find out the radius of the smallest orbit that an electron can revolve ...

Q: What is the appropriate size of volumetric flask to use if you want to dilute a 75.00 mL solution of...

A: The question can be solved using mole concept as:  

Q: Determine the concentration in mol/L (M) of a solution of 18.25 g of HCl in 250.0 mL of water and id...

A: The molecular weight of HCl is 36.5 gm/mol That 36.5 gm HCl=1mol Hence 18.25 gm HCl=18.25gm×1mol/36....

Q: I. CUSTOM SECTION Material Mass (kg) Volume (L) Density (kg/L) Does it float? Styrofoam 1.50 kg 4.00...

A: Given: Density of water = 1.0 kg/L

Q: Which of the following is the correct sequence of weighing using an analytical balance? I. Press Tar...

A: The steps given are,  

Q: Consider this reaction: H,CO, (ag) – H,0 (aq) + CO, (ag) At a certain temperature it obeys this rate...

A:

Q: A chemist obtained the following data for the percent compound Z in triplicates (n=3) of an insectic...

A: Data obtained by the Chemist:- The percent compound Z in triplicates (n=3) of an insecticide prepara...

Q: Question 25 The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn2+//Cu²+/Cu ...

A:

Q: 1. I. Press Tare II. Weigh container and sample II. Weigh container A) II, II, I B I, II, II c II, ,...

A: First  put  weigh container  on the balance then press tare button after that we will weigh both  co...

Q: A 4.50-mol sample of HI is placed in a 1.00-L vessel at 460°C, and the reaction system is allowed to...

A: Given,  Initially moles of HI = 4.50  And volume= 1.00L  At equilibrium moles of H2 and I2 = 0.343

Q: You are asked to do quality control and quality assurance during the determination of lead concentra...

A: The limit of quantitation is given by the expression: Limit of quantitation=10 sm     where, s=stand...

Q: Question 23 The equilibrium constant Kc for the reaction fructose-1,6-diphosphate = glyceraldehyde-3...

A:

Q: Question 33 The most convenient way of expressing the random error, regardless of the concentration ...

A: The most convenient way of expressing the random error is 

Q: Pralidoxime is an antidote to organophosphate poisoning. Which of the following is false? N-OH O It ...

A: Pralidoxime belongs to family of compounds called oximes that binds to organophosphate -inactivated ...

Q: Computation. Compute for the amount of NaHCO3 that reacted with 6.2 g citric acid. 3 NaHCO3 (MW:84g...

A:

Q: The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn²+//Cu²+1Cu (s) If the Z...

A: Answer: Nernst equation can be used to calculate the cell potential.

Q: uestion 25 The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn²+11Cu²+1Cu (...

A: We have to predict the emf of cell, ∆Go and nature of reaction.  

Q: The addition of 3.15 g of Ba(OH)2 · 8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a ca...

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next ...

Q: How do we express the independent variable in Kolrausch plot? Concentration Natural logarithm of con...

A: Kholraush law states that at infinite dilution, each ion (cation and anion) independently migrate an...

Q: Question 23 The equilibrium constant Kc for the reaction fructose-1,6-diphosphate = glyceraldehyde-3...

A:

Q: What is the Kohlrausch plot of a weak acid? 1 2 O 2

A: Kohlrausch's law is used to calculate molar conductance of weak acid by graphical methods.  It has t...

Q: Liquid water is placed in two sealed glassware at the same temperature. 200 mL of water is placed in...

A: The liquid molecules tend to convert into the vapour phase. In a closed container, the pressure of v...

Q: Given the chemical reaction 4 Fe + 3 O₂ + 6 H₂O → 2 Fe₂O₃.3 H₂O which is reduced?

A:

Q: the infrared region, there is an absorption line of hydrogen that appears at 1094 nm. Determine the ...

A: Ans. This transition is part of The Paschen Series of lines which occurs in the infra-red region of ...

Q: Acetic acid percentages in five vinegar samples were 4.98, 4.86, 4.97, 4.99. 5.08, 5.11, 4.97, 5.32 ...

A: To determine if any value can be rejected, we need to use Q-test.

Q: Solve the problem: 1. Find the freezing pt. & boiling pt. of a solution containing 4.0 g sucrose (C1...

A: Given,  Mass of sucrose = 4.0 g  Mass of water = 200 g  Molal boiling point constant of water = Kb =...

Q: Aqueous solutions of tin (IV) nitrate and Iron (III) lodide react. Whlch of the following Is the cor...

A:

Q: Question 1 Which of the following corresponds to the slope of the van't Hoff equation? In K ΔΗ rxn R...

A:

Q: uestion 8 For strong electrolytes, such as hydrochloric acid, the molar conductivity decreases sligh...

A: The answer is as follows:  

Q: 2.7 x 10-3

A: Actually of La3+ means concentration at La3+ (effective) now as La(IO3)3 and La(NO3)3 both contain  ...

Q: False For weak electrolytes, such as acetic acid, at very low concentrations the molar conductivity ...

A: The answer is as follows:  

Q: Create a list of 5-10 common chemicals or hazardous materials used in a kitchen/restaurant environme...

A: Some of the kitchen /restaurant chemicals usages are either for a food additive or cleaning items. A...

Q: Bromination of an alkene by N-bromosuccinimide (NBS) in the presence of light or peroxide is a radic...

A: The reaction given is,  

Q: 1. How many MOLECULES of sulfur dioxide are present in 6.52 grams of this compound? molecules. 2. Ho...

A:

Q: Using the arithmetic problem below, determine the correct number of significant figures. (1.5 × 10–...

A:

Q: Which of the following corresponds to the slope of the van't Hoff equation? O AG O In K ΔΗ

A: Answer of the question given below, 

Q: Define the following terms: (DO NOT COPY ON GOOGLE!) A. Stoichiometry B. Formula mass

A: Given terms are : A. Stoichiometry B. Formula mass Define the following terms = ?

Q: What volume of 0.172 M NaOH, in militers, contains 200g of NaOH? Volume mL

A:

Q: 1)   Which reaction is likely to be more exergonic, one with Keq = 1000 or one with Keq = 0.001?

A: Keq is the equilibrium constant.  Exergonic reaction is a reaction which is spontaneous and releases...

Q: 4.3. Which reaction in each pair would be expected to be faster? Explain. h. H CH,CH,ONos H CH2CH2ON...

A:

Q: Define the following terms: (DO NOT COPY ON GOOGLE!) A. Equivalent weight B. Colligative property C....

A: Given terms are : (A). Equivalent weight (B). Colligative property (C). Osmosis Define the following...