Answered: concentration

Science

Chemistry

concentration

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.3QAP

See similar textbooks

Related questions

Q: A solution is prepared by diluting 2.81 mL of the blue dye stock solution to 25.00 mL. The measured…

A: The data given is, Given: Volume of blue dye used = 2.81 mL. And the volume of final solution =…

Q: Suppose that a solution has an absorbance of 0.226 at a wavelength of 450 nm. If the concentration…

A: Given the absorbance of the solution, A = 0.226 Concentration of the solution, C = 24 μM path…

Q: A solution with a concentration of 0.10 M is measured to have an absorbance of 0.36. Another…

A: Absorbance of 1st solution = A1 = 0.36 Molarity of 1st solution = M1 = 0.10 M absorbance of 2nd…

Q: The density of a 2.25 M resolution with ethanol C2H5OH is measured at 0.977 g/mL. Calculate mass…

A: Here we have to determine the mass percentage of ethanol in the given solution.

Q: 1) Calculate the molar conductance of KCI solution (0.1M), if the specific conductivity for the…

Q: I The concentration of phenol in an aqueous solution is 10 ug/mL. The absorbance is found to be…

Q: If the molar absorptivity at a specific wavelength is known for a protein, it is pretty easy to…

Q: The standard curve was made by spectrophotographic analysis of equilibrated iron(III) thiocyanate…

A: Given the linear regression equation for the analysis of the standard solution is Y =…

Q: Which of the following statements DOES NOT describe the real limitation of Beer's Law? The…

Q: The protein content of the unknown samples were determined using BSA as standard. The absorbance…

A: Given data for standard:

Q: Calculate the molar absorptivity of benzene (FW = 78.11 g/mol) at 256 nm if a 25.80 mg of benzene…

Q: A reagent bottle contains 250 cm3 of 0,4 mol.dm–3 oxalic acid (C2O4H2) solution. Calculate the mass…

A: Initial concentration of oxalic acid = 0.4 mol/dm3

Q: Calculate the molar absorptivity of a 1.00 x 10-4 M solution, which has an absorbance of 0.372, when…

A: The question is based on Beer's law. the formula for Beer's law is as follows: A=eLc here,…

Q: A calibration curve constructed from absorbance values of solutions containing a known concentration…

A: Given that : The best-fit line for the calibration curve constructed from absorbance values of…

Q: A student weighed out 0.150 g of protein powder and dissolved it in 100 mL of water (Solution 1).…

A: In the solution, the solute concentration is decreased on the mixing of the more amount of the…

Q: The concentration of glucose in an aqueous solution can be determined by oxidation with…

A: The method of least squares is used to minimize the error that can occur while plotting a straight…

Q: Determine phosphate concentration of a water sample using the following information: Standard…

A: Given, Absorbance of water sample = 0.013 Slope = 1763.2 y-int = 0.011806 R2 = 0.99181 Concentration…

Q: Fractional distillation of a binary mixture leaves behind a liquid consisting of both components.…

A: Fractional distillation is the technique to separate miscible liquid with different boiling points.…

Q: A student prepared a calibration curve by measuring of the absorbance of five standard solutions of…

A: path length is 5 cm slope of the curve is 300 L/mol graph is drawn " Absorbance vs Concentration…

Q: TA 100 mL natural water sample has very small concentration of Ag* (1x10-7 M). Is it possible…

Q: The following Absorbance vs concentration of nitrite graph is obtained for a set of data: y =1.6628x…

A: The details solution for this is provided below in step II.

Q: In determining the amount of copper and the identity of the copper compound in the unknown sample, a…

A: As 100 mL solution contains 120.8 mg sample so, 5 mL ,, ,, (120.8 mg * 5…

Q: Write a conclusion: Discuss the possible reason(s) the food dyes diffuse to form distinct zones and…

A: When a drop of food dye is added to water, it will diffuse rather than the mixing process. Basically…

Q: A Beer's Law graph obtained by plotting absorbance versus concentration in mol/L for a series of…

Q: The measured absorbance of a solution held in a sample container witha path length of 3 cm is 0.96.…

Q: . In gravimetry, would interference ions contribute to a positive or a negative systematic error?…

A: Gravimetric analysis : Gravimetric analysis is a quantitative determination of analyte through the…

Q: The nickel level in a soil sample was determined using AAS. A 3.0 g sample was dissolved in acid and…

A: It is application of lambert beer Law Here we are required to find the mass of nickel in mg

Q: A solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index…

A: According to the given problem a solution consisting of isobutyl bromide and isobutyl chloride is…

Q: How can the matrix effects affect the determination of phosphate in seawater by using AAS

A: A question based on analytical process that is to be accomplished.

Q: In an experiment, there is a contaminant that causes absorbance values to read higher for…

A: Iron(III) and thiocyanate ion combine in different stoichiometric ratios and form many complexes. At…

Q: Which of the following variables does absorbance not depend upon? Conductivity of the sample.…

A: Absorbance : It shows how much of light is absorbed by the sample .

Q: In an experiment to measure the dipole moment of 1,2 dichlorobenzene, 1.603 g of this substance was…

A: Mole fraction = number of moles of the component / total number of moles of all the components…

Q: Mass of aspirin used is .090 g the absorbance for the final solution was .304 nm Slope is 1708…

A: Given: Mass of aspirin used = 0.090 g The absorbance for the final solution was = 0.304 Slope is…

Q: How does the spectrophotometer measure absorbance?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Calculate the Debye length (1/k) of the double electric layer near the charged surface in KCl…

A: Debye-Huckel law gives the realtionship between the activity coefficient of an ion in a dilute…

Q: 13. The molar conductivity of 0.0300 M HF (aq) is 4.10 mS m² mol¹. Determine the acidity constant,…

A: Given data

Q: A researcher prepared mixed solutions at different concentrations and measured the absorbances with…

A: A question based on Beer-Lambert law, which is to be accomplished.

Q: Suppose that a solution has an absorbance of 0.250 at a wavelength of 450 nm. If the concentration…

Q: A student weighed out 0.150 g of protein powder and dissolved it in 100 mL of water (Solution 1).…

A: The problem can be solved in three stages of solution and we must calculate the concentration of…

Q: A student performed the fractional distillation of a cyclohexane/toluene mixture. The refractive…

Q: A student weighed out 0.150 g of protein powder and dissolved it in 100 mL of water (Solution 1).…

A: The percentage protein by mass in the original protein powder is to be calculated.

Q: A beers law plot which is (Y=4773x+.0016) was constructed for solutions of potassium chromate a.) if…

A: According to Beer's Lambert law, the intensity of a beam of monochromatic radiation decreases…

Q: Discuss three practical applications of solvent extraction in analytical chemistry

A: A question based on separation process that is to be accomplished.

Q: The best fit curve line to an absorbance vs. concentration plot for standard solutions of a dye has…

A: Given Slope (m) = 0.1815 ml/mg Intercept (c) = 0.0477 Absorbance ( y-axis) = 0.464

Q: A student weighed out 0.150 g of protein powder and dissolved it in 100 mL of water (Solution 1).…

Q: 5) If absorptivity (the constant of how much light of a given wavelength the sample absorbs) and…

Q: Calculate the resulting concentration of a solution prepared by diluting 20.00 mL of concentrated…

A: Given: Volume of concentrated HCl solution = 20.00 mL. Volume of diluted HCl solution = 500.0 mL…

Q: The table below describes a procedure in preparing standard solutions of a protein sample with…

A: Given data:

Q: An unknown food-dye is analyzed by the method used in this experiment. The absorbance of 5 standard…

A: Given information:Absorbance (A) = 0.55A straight line with equation Abs = 4.850x + c

Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

Marco diluted a stock solution of Yellow #5 dye and obtained the equation y=13.09x after plotting his Beer's Law data. Using the equation Marco got, determine the concentration, in M, of Yellow #5 in a solution with an absorbance of 0.436.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

(A) if both sentences are true,(B) if both sentences are false,(C) if the first sentence is true but the second is false, and(D) if the first sentence is false but the second is true. 1. In the Winkler Titration Method, sodium thiosulfate is standardized against a known concentration of magnesium iodate. The normality (N) of a solution is always equal to its molarity (M). 2. In the experiment on determining the dissolved oxygen concentration of a water sample, the compound used to acidify the sample was hydrochloric acid. An acidic solution will have a pH greater than 7. 3. Radioactive wastes, like uranium, must be handled and disposed of according to special regulations designed to protect people and the environment. Nuclear power plants produce too much greenhouse gases due to the burning of uranium.
TRUE OR FALSE: The property of the solution remains constant even if its composition varies.
2. You have a solution that contains 4.0g of oxalic acid dissolved in 100 mL of water. This solution is placed in a separatory funnel, and then 100 mL of diethyl ether is added to the separatory funnel and an extraction is performed. (Diethyl ether and water are immiscible solvents.) Use the following constants to calculate how much oxalic acid is in each solvent after the extraction. Solubility of oxalic acid in water = 9.5 g / 100 mL Solubility of oxalic acid in ether = 16.9 g/100 mL
Water is slightly soluble in liquid nitrogen. At-196°C(the boiling point of liquid nitrogen), the mole fraction of water in a saturated solution is 1.00 × 10-5 . Compute the mass of water that can dissolve in 1.00 kg of boiling liquid nitrogen.
The standard concentration of a solution of barium chloride BaCl2 containing 562 mg/L is ……. Note that the atomic weights: Cd = 137.33, Cl = 35.5 *
In fractional distillation, the greater the length of a fractionating column: * the lower its efficiency the further it becomes from an ideal distillation the higher its efficiency the faster the distillation will proceed
When 14.3 g of a certain molecular compound X are dissolved in 85.0 g of benzene C6H6, the freezing point of the solution is measured to be 0.5 °C. Calculate the molar mass of X. molal freezing point depression constant (Kf)°C·kg·mol−1 of benzen is 5.07 If you need any additional information on benzene, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to 2 significant digits.
Prove the statement that an alternative way to express Henry's law of gas solubility is to say that the volume of gas that dissolves in a fixed volume of solution is independent of pressure at a given temperature. Step 1 of 3 Use Henry's law to express the vapor pressure of a soluble gas in terms of the number of moles of gas dissolved in a solution. (Use the following as necessary: K to represent the Henry's law constant, n2 to represent the number of moles dissolved, and nT to represent the total number of moles.) n2 K. P2 n2 K- Step 2 of 3 Express the same pressure using the Ideal Gas law. (Use the following as necessary: n2, R, T, and V.) P2 Submit
COLLIGATIVE PROPERTIES: SMART WORKSHEET PART I. DETERMINING THE FREEZING POINT OF WATER PART 1.1 The expression for the freezing point depression of a solution relative to that of the pure solute is shown by the following equation: ATƒ = i × Kƒ × m From solutions of known concentrations of sodium chloride in water, you determine Kƒ, the freezing point depression constant of water. What assumption is necessary in order to do these calculations? Necessary assumption for these calculations i=1 A
The density of an aqueous solution increases as solutes such as salts are added. What bearing might this have on predicting whether the aqueous solution will be on the top or on the bottom for an extraction?
. Barium chloride has a freezing point of 962°C and afreezing-point depression constant of 108 K kg mol-1 . If12 g of an unknown substance dissolved in 562 g of barium chloride gives a solution with a freezing point of 937°C, compute the molar mass of the unknown, assuming no dissociation takes place.
When a nonvolatile solute such as ammonium sulfate is dissolved in a solvent like water, one of the observed effects is an increase in the vapor pressure of the solute. B scattering of light beams by the solute particles in the solution. an increase in the freezing point of the liquid. a decrease in the vapor pressure of the solvent. a decrease in the boiling point of the liquid.