Answered: Discuss the a) direct method of…

Science

Chemistry

Discuss the a) direct method of weighing b) indirect weighing using the analytical balance.

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 47A

See similar textbooks

Related questions

Q: Which of the following is not one of the properties of the precipitate in the gravimetric analysis…

A: To find not one of the properties of the precipitate in the gravimetric analysis method.

Q: Why is rinsing of the burettes both with distilled water and solution a critical step in titration?

A: Please find your solution below : In chemical analysis, titration (volumetric analysis) is a…

Q: In order for the gravimetric analysis to be valid, how do you ensure that all of the chloride ions…

A: Gravimetric analysis is the analysis in which ions from solution is precipitate as a solid ,which…

Q: A chemist received different mixtures for analysis with the statement that they contained NaOH,…

Q: (Topic: Gravimetry multi-component analysis) The calcium and magnesium in a urine sample were…

A: Solution - Principle of gravimetry The principle of this type of analysis is that once an…

Q: What type of samples can be analyzed using AAS?

A: **Since you have asked multiple questions, we will solve the first one for you. If you want any…

Q: How was the precipitate obtained after filtration? (A By scraping from the filter paper and…

A: Filtration- the process in which solid particles in a liquid are removed by the use of a filter…

Q: A student rushed through this experiment, but noted some procedural errors in their lab…

A: Remember, during titration we follow: N1V1 = N2V2 If N2V2 is considered for unknown solution then…

Q: How was the precipitate obtained after filtration? By scraping from the filter paper and…

A: Filtration is used to separate an insoluble solid from a pure liquid or a solution

Q: 3. What is the name of the indicator used in the Vinegar analysis experiment? 4. Why is it important…

A: The indicator is a chemical substance which indicates the end point. and percent error represent the…

Q: Look at the photos carefully. Match each description to the best burette photo for that description.…

A: A titration is a method used to assess the concentration of an unknown solution using a solution of…

Q: Why do we use distilled water and not tap water for boiling point elevation experiment?

A: Boiling point elevation occurs when there are dissolved minerals in the water.Distilled water…

Q: What are some advantages of the membrane filter technique in the analysis of a water sample? Some…

Q: What necessary steps can you suggest to avoid impurities in final precipitate during gravimetric…

A: Answer and explanation is given below hope you like it.

Q: What are in the distillate collected from the distillation?

A: (1) A receiver

Q: 6. Why do we need to precipitate from a hot solution? 7. Why is the precipitating agent added all at…

A: Precipitation is the process of setting down of undissolved substance.

Q: Why should you know the composition of the weighing form? a. So that it can be washed properly b.…

A: Composition of the compound tells about the mass .

Q: Which among the statements to promote large precipitates is INCORRECT?

A: Option 4 is incorrect Lower the relative supersaturation (RSS) valve,larger the precipitate…

Q: In general describe how a mixed solvent recrystallization works.

Q: The reagent that is used in the preparation the sample and does not contain the analyte is called

A: The reagent blank is a solution that contains all the same components as in sample solution but no…

Q: obtain an Unknown Sample from the Stockroom. You begin testing the solution through the steps…

A: Given : unknown sample and hydrochloric acid and Ammonia. To find : ions present in the sample.…

Q: IF an analytical balance was not calbirated before gravimetry analyses, what will happen to the mass…

A: Instrument calibration is done so as to remove the unnecessary error in the analysis .…

Q: What are the types of gravimetric methods? Give an examples where each method is used in an…

A: Generally, there are four types of gravimetric methods which are listed below - - > 1…

Q: Balanced net ionic equation of c)

Q: Describe the basis of operation of the following separation methods. i. Precipitation ii.…

A: Precipitation, distillation, extraction all are methods to separate components from it's mixture.…

Q: Why is hydrochloric acid added to the precipitated copper metal near the end of the procedure?

A: Step 1) Copper is an element which is chemically combined with the variety of compounds in nature.…

Q: briefly explain why it is necessary to be careful when disposing of the filter paper salt bridges

A: In a galvanic cell, a device which is connected between the oxidation and reduction half cell is…

Q: 6. The following are disadvantages of using filter paper in gravimetry, which is not included? а.…

A: 6) c is the correct answer. IN the Gravimetry we uses the ashless filter paper to achieve the…

Q: A mixture contain benzoic acid, salt, powdered silica (white sand) and contaminated with coloring.…

A: Benzoic acid is soluble in organic solvents like ethyl acetate. When the mixture is treated with…

Q: Why a filter paper cannot be utilized for the removal of potassium permaganate precipitate?

A: Filter paper can be defined as a semi-permeable paper that helps us to separate fine solid particles…

Q: Practie Use a flow chart to show how you could separate a mixture of the following compounds using…

A: Given that Tha separation mixture

Q: ) When considering the overall dialysis procedure, why is it important to exchange old/used dialysis…

A: Since you have asked multiple questions, we have solved the first question for you. If you want any…

Q: Accurately weigh out about 6g copper(ii) sulfate crystals into a weighing boat. Use the copper(ii)…

Q: Question: How to get rid of colored impurities in the recrystallization process? Explain that in…

A: Recrystallization is a chemical purification process. By dissolving all impurities and a compound in…

Q: What technique might be used to analyze an aliquot from a reaction mixture? Gas Chromatography…

A: An aliquot means very small quantity of substance. Gas Chromatography is powerful tool for…

Q: Recrystallization and Melting Points Why do you need to heat a sample slowly when taking a melting…

A: Interpretation: We need to tell why we heat sample slowly during determination of melting point.

Q: Blood added with 25 ml distilled water + submerged in a water bath, added 1-2 drops of 10% acetic…

A: A question based on qualitative analysis, which is to be accomplished.

Q: Why are many ionic precipitates washed with electrolyte solution instead of pure water?

A: The polar substances are the one which is separated by electric charge and leads to the formation of…

Q: Why might it be necessary to pretreat a sample you are working with before running your laboratory…

A: Please find your solution below : In chemistry, sample preparation or the pretreatment of a sample…

Q: The gravimetric analysis of nickel in copper and iron, what is the purpose of "dipping" the…

Q: Why do you need to swirl the flask constantly during the titrimetric analysis? a. To look cool…

A: Titration: It is an analytical method to find out the concentration of a solution with a known…

Q: What are the common faults in the Water distiller instrument?

A: You'll need to clean the boiling chamber on a regular basis to maintain your water distiller running…

Q: Why is the titration done with vigorous swirling?

A: Titration is the process of chemical analysis where the quantity of some constituent of sample is…

Q: In the original mixtures, test tube 1 contained magnesium and a zinc compound, and test tube 2…

A: An atom is the simplest unit of matter and the combination of two atoms produces a molecule. For…

Q: Give the rule in reading the meniscus when measuring colored and colorless solutions.

A: The rule in reading the meniscus when measuring colored and colorless solution is given below.

Q: Chromatography: Evaluating Pen Inks PreLab Questions Name Section 1. Observe the following picture…

A: When there is more than one sample, the TLC spotting technique must be carefully performed. 1. Do…

Q: 2) You are tasked with determining the barium content of a sample containing barium nitrate mixed…

A: Observing the given data table, it is clear that the mass of precipitate value gets decreased on…

Q: Addition of only 5 drops of potassium chromate will affect the analysis of chloride in the water…

A: A true or false question based on analysis of chloride, which is to be accomplished.

Q: Why might it be necessary to employ procedures such as the use dilution and in-use tests?

A: Step :1 A use dilution test is the another method for testing the efficacy of the disinfectant.In…

Question

1. Discuss the a) direct method of weighing b) indirect weighing using the analytical balance.

2. Explain how suction filtration is carried out in the laboratory. Give the important points that must be observed in doing the process.

3. Explain why it is important to wash the precipitate. Can distilled water be used to wash all types of precipitates?

4. Discuss how to use a desiccator. When should a desiccant be replaced?

PreviousNext

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

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

Name Chem Section Data Sheet determination 23°C 23°C 25°C temperature of filtered KHT solution, °C 0.04m concentration of NaOH solution, mol L- 0.04 m 0.04m KHT solution 14.9 49-5 final buret reading, mL initial buret reading, mL 49.9 volume of KHT used, mL NaOH solution 28 final buret reading, mL 10 49.8 १.१ 49.7 initial buret reading, mL 50 40mL volume of NaOH used, mL number of moles of NaOH used 0014 0014 number of moles of HT titrated .04 [HT] in KHT solution, mol L- 1.42 1.142 1.142 [K*] in KHT solution, mol L-1 solubility of KHT, mol L-1 average solubility of KHT, mol L- Ksp average Ksp
Answer in not more than 5 sentences per question 1. Discuss the a) direct method of weighing b) indirect weighing using the analytical balance. 2. Explain how suction filtration is carried out in the laboratory. Give the important points that must be observed in doing the process. 3. Explain why it is important to wash the precipitate. Can distilled water be used to wash all types of precipitates? 4. Discuss how to use a desiccator. When should a desiccant be replaced? Give 2 examples of substances used as desiccants.
1. What is the weight of the sample in trial 1? 2. What is the average weight of the precipitate in trial 1? 3. From the computed weight of the sample in trial 1, what is the theoretical amount of silver nitrate solution required to precipitate all of the chloride ions as silver chloride? 4. What is the molecular weight of the precipitate?
The following glassware is used when we do titrimetric analysis. If the glassware is not fully dry when used (i.e., there is water left in the glassware), determine whether this will affect the results of the titration process. Give a brief explanation. a. Erlenmeyer flask (used during titration) b. Burette c. Pipet (used in transferring the sample) d. Volumetric flask
Identify the type of error (systematic or random) for each of the following situations below and defend your answer briefly: The student forgot to obtain the mass of the filter paper before filtering the solution and calculating the mass of the precipitate. a. b. In the water analysis, trial 3 was analyzed 2 days after the analysis of trials 1 and 2. Experiment #2 was conducted from 8:00 AM to 4:00 PM. The weather at the start of the experiment was sunny then became rainy with thunderstorms after 12 NN. C. d. The NaOH solution used by the students in the titration of vinegar was expired
To form large precipitates, what should be done? -Add the precipitating agent slowly with stirring. -Pour the precipitating agent immediately. -Decrease the temperature rapidly. -What can be done to form large precipitates? -Add a large excess of the precipitating agent.
3. Why does adding a salt solution cause soap to precipitate?
Which of the following is a digestion process. O A. Subjecting the precipitate in the furnace. B. Separating the precipitate in its mother liquor. C. None of the choices. D. Adding acid to the mixture. O E. Boiling the mixture for several minutes.
25. Organic compounds that are water-soluble can conduct electricityTrueFalse 26 In order for the gravimetric analysis of MgCl2 in the simulation involving stoichiometry to be valid, all of the chloride ions must be precipitated. How can ensure this?a. Add silver ions in excessb. Have roughly, the same amount of the reactant c. Add chlorine ions in excessd. Add the same volume of reactants 27 this occurs when the energy within a phase of matter is less than the strength of the intermolecular forces:a. Solid to Gasb. Liquid to gasc. Gas to solidd. Solid to liquide. Two of the choices
2. In the deposition method, one of the conditions that must be met is…a. The precipitate has a high solubility or solubility productb. The precipitate formed must be quite difficult to dissolvec. The precipitate formed does not have to be quite pured. Free precipitate form 3. One of the conditions for selecting a sampling location…a. Near motorized vehiclesB. Near the incineratorC. Near the treeD. Far from buildings
26 In order for the gravimetric analysis of MgCl2 in the simulation involving stoichiometry to be valid, all of the chloride ions must be precipitated. How can ensure this?a. Add silver ions in excessb. Have roughly, the same amount of the reactant c. Add chlorine ions in excessd. Add the same volume of reactants 27 this occurs when the energy within a phase of matter is less than the strength of the intermolecular forces:a. Solid to Gasb. Liquid to gasc. Gas to solidd. Solid to liquide. Two of the choices
A solution failed to undergo recrystallization. Which of the following steps may be taken to reduce crystallization? a. adding a small amount of pure crystal b. adding a small piece of metal c. adding a small amount of solvent d. all the choices