What are replicates in Analytical Chemistry? O The component of a sample that repeats over different assays. Similar assays done to different samples A sample that contains exactly the same amount of analytes than the original sample similar samples that are analyzed at the same time and in the same way

Q: 45. The process of removing an appropriate number of items from a population in order to make…

A: Any drug requires a variety of quality analysis to be performed prior to its final production.

Q: The accuracy of an instrument was tested by conducting a Reference Standard Material (RSM)…

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Q: It is important to check the information attached to a product before using it.* True False Consists…

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Q: Gas chromatography would NOT be appropriate to use for a sample that is decomposed by heat a mixture…

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Q: Question 34

A: Mixture: Combination of two or more different materials in a way that no chemical reaction occurs.…

Q: A calibration curve of ZnCl2 conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

A: In the linear regression plot, the X-axis represents the mass percent of ZnCl2. The Y-axis…

Q: Which scale is most useful for reporting data from the spectrometer? Why?

A: The two scales used for analysis in UV spectroscopy is percent transmittance and absorbance.

Q: Generally, two types of representative samples are observed in the sampling process. They are gross…

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Q: 28 Report Sheet Separation of the Components of a Mixture D. Determination of Percent Recovery Mass…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: In a dry test tube, put enough cane sugar to make a layer about 1⁄4 inch deep. heat the tube in the…

A: During the hearing process of cane sugar in test tube, sugar first melts, then turns brown, and…

Q: 1a. Throughout the experiment, what are some possible sources of error that could have led to…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: A mixture that is formed in such a way that each of its components retain their identity and the…

A: The type of mixture has to be identified.

Q: Assignment: This is an individual activity. After studying the lesson and watching all the videos,…

A: 1.  a) Direct weighing means an objects is placed directly on balance and we take reading.…

Q: It is a type of mixture with particles evenly scattered in a dispersed medium without settling down

A: Mixture is the  combination of  two substance.  There are  two types- 1) Homogeneous  mixture.  2)…

Q: For questions 48-55, please refer to the following:   In order to form Ba(IO3)2, 500 mL of 0.5000…

A: Molarity of Ba(IO3)2 = 0.5 M Volume of Ba(IO3)2 = 500 ml Molarity of NaIO3 = 0.5 M Volume of NaIO3 =…

Q: Explain three different types of mass spectrometers. Differentiate them, construction,working and…

A: Interpretation - To explain three different types of mass spectrometers and we have to differentiate…

Q: About Sampling, tick only the incorrect alternative(s). Choose one or more: A) Identifying the…

A: Analysis are of two types: qualitative analysis and quantitative analysis. Qualitative analysis…

Q: All waste from a chemical experiment should be put in the same waste container    true or false?

A: The statement given is "All waste from a chemical experiment should be put in the same waste…

Q: Allison dissolves as much as possible of a certain solid in a quantity of water at room temperature;…

A: Solubility is the mass of the solute dissolved in particular amount of solution .

Q: A sample is said to be homogeneous if 1. OThe sample has a different composition in different parts…

A: Correct answer is (2.) The sample is completely mixed up. Homogenous mixture has uniform mixture and…

Q: The data below apply to questions 13 - 18. A sample is believed to consist of Epsom Salt, MgSO47H2O.…

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Q: Calculate the mass and volume (mL) of 5.0 mmol triethylsilane Mw: 116.28 g/mol Density: 0.728 g/mL

A: Given :-  moles of triethylsilane = 5.0 mmol  Molecular weight = 116.28 g/mol Density= 0.728 g/mL…

Q: Which of the following is incorrect: a. General steps in qualitative analysis include: Method…

A: Chemical analysis are of two types :  1. Qualitative analysis 2. Quantitative analysis The incorrect…

Q: 17. Aiphonse Bertillon (1853-1914) devised the first sei- entific system of using a series of body…

A: 17) Alphonse Bertillon (1853-1914) devised the first scientific system of anthropometric using a…

Q: What is the practical importance of extraction in relation to chemistry especially when it comes to…

A: Extraction is important  for  Isolating important  materials from plants  .

Q: Suppose you have a bucket of sand containing 1.5 billion grains of sand ( 1.5×109 grains). Most of…

A: Total number of grains = 1.5 ×109 grains Concentration of brown sand is = 4.0 %  The number of brown…

Q: Which of the following is incorrect: a. General steps in quantitative analysis include: Method…

A: Chemical analysis are of two types : 1. Quantitative analysis 2. Qualitative analysis

Q: A chemist needs to create a series of standard Cu2+(aq)Cu2+(aq) solutions for an absorbance…

A: We know that moles of Cu2+ = volume of Cu2+ added in lit X molarity. Since initially we added 5 ml…

Q: With the help of your family members give at least three practical applications of separating…

A: Please find your solution below :  Most of the substances we use everyday are actually once a part…

Q: Which of the following gives the best description of what the scientific method is? It is the…

A: A scientific method is an empirical method that involves careful and systematic observation,…

Q: What is wrong with the expression “That is just a theory,” if by theory the speaker is referring to…

A: To determine: The error in the expression “This is just a theory” if by the theory the speaker is…

Q: a) b) c) d) e) 1) g) h) i) D k) 1) n) MeO it with Jul 8.0 MeO 1.00 8.0 1 L 7.8 I 7.8 ľ K FAK 1 7.6…

A: 1HNMR Spectra given above have signals between 6 to 8 ppm taht is aromatic region .therefore, by…

Q: We commonly encounter chemical reactions in daily life such as fire and biological metabolism. Cite…

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Q: > In a typical quantitative analysis, which step is the most crucial? What part will make or break…

A: Quantitative Analysis  Using mathematical and statistical modelling, measurement, and investigation,…

Q: In an experiment similar to Perrin's, you counted the concentration of suspended particles in a…

A: First we check the relation between depth and number of atoms using the given two observation at two…

Q: A chemist needs to create a series of standard Cu2+(aq)Cu2+(aq) solutions for an absorbance…

A:

Q: It is the type of analytical method that relies on the absolute stoichiometric equivalences of…

A: Instrumental methods: In this method quantitative and qualitative analysis of the analyzed is done…

Q: What are the important considerations in reporting analytical results?

A: Analytical result : A data analysis after experiment is called analytical result.

Q: Which of the following is not the general step in the chemical analysis? a. sampling and sample…

A: General steps in a chemical analysis Identification of the problem and formulating questions Select…

Q: Question 9/ 10 ميز هذا السؤال A sample is said to be homogeneous if 1. O The sample has a different…

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

Q: What is polarity and how is polarity related to how chromatography works?

A: In chemistry, polarity of a molecule is defined as the electric charge distribution over the atoms…

Q: 4.Determine the type of assay employed for this substance: ZINC OXIDE 5.The solvent used in making…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A method of analysis yields masses of gold that are low by 0.4 mg. This method is used for analysis…

A: The relative error is (mass loss/Total mass )x 100. Based on above detail solution is provided…

Q: What is analytical chemistry in your own words? How do you differentiate analytical chemistry from…

A: Analytical chemistry can be used for the detection of chemical compounds.

Q: 1. Which of the following is not a step in preparing a water sample container? a. All sample…

A: Option a is the correct answer. Steps in preparing a water sample container: Decide on the number of…

Q: What do you call the liquid that separates from the solids in the a) decantation method? What do…

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Q: Which of the following is incorrect: a. General steps in qualitative analysis include: Method…

A: A multiple choice question about chemical analysis, which is to be accomplished.

Q: The world population is estimated to be 7.4 x 109. Nauru is the smallest island nation and comprises…

A: Estimated world population = 7.4 x 109