Explain the difference between random sampling and haphazard sampling as used in Analytical chemistry.

Q: 5. Give three common ways to separate the components of a mixture. SEPARATION METHODS

A: Mixtures Mixtures are formed on combination of two or more substances. Solutions, colloids and…

Q: Calculate the bulk density of a 130 cm3 soil sample with an oven-dry weight of 160 g

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Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…

A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…

Q: Cu Absorbance 1 Absorbance 2 Absorbance 3 Mean + SD standard (ppm) 0.0522 0.1013 1 0.0521 0.0520…

A: To determine the concentration of metal in unknown sample, we must first plot the mean absorbance (y…

Q: What is sampling in analytical chemistry?

A: Analytical chemistry is a branch of chemistry in which we analyze the sample by different…

Q: Plot the following data and perform linear regression to obtain the value of the slope, the value of…

A: The Plot is drawn in the Microsoft office Excel and it is follows.

Q: What is instrumental analysis in chemistry?

A: Analytical chemistry is the science of extracting and processing information about the composition…

Q: 3. What is particulate gravimetry? When do we use this technique?

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance.

Q: What are the advantages and disadvantages of using external standards in instrumental analysis?

A: • External standards are the most common form of standardizations - external standards are prepared…

Q: Convert 9200 dpm per in^2 to Bq/100cm^2

A: given 9200 dpm/inch2

Q: what is spectrophotometry? how is it related to Beer's Law?

A: Spectrophotometry is a part of electromagnetic spectroscopy worried about the quantitative…

Q: For the calculation of sd, shouldn't it be (0.97-1.09) and so on... because 0.97 = x and 1.09 =…

A: The general equation to find the standard deviation is: ∑i=2n(Xi-μ)2NwhereXi = Experimental valuesμ…

Q: 4.5 Spectrum 3 4.0 G 3.5 3.0 H 2.48 2.5 2012- 2.0 1.5 |N| J <1.05 3₂ 1.0 K 0.5 ppm

A: In order to correctly assign the protons and to detemine the structure of the molecule, the close…

Q: 29 1004 108 110 50 10 20 30 40 50 60 70 60 90 100 110 Reiative intensity

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Q: What is the difference between determinate and indeterminate errors? Cite at least two examples of…

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

Q: 4.Discussed the Purposed of the Golden rules in the practice of Forensic Chrmistry.

A: The application of chemistry and its subfield which deals with toxicology in a legal manner is study…

Q: For EACH type of gravimetric analysis: Give actual applications of each analysis. Include the…

A: Gravimetric analysis: It is a quantitative analytical method that is based upon the measurement of…

Q: Group

A: Dear student I have given answer to your question in the image format.

Q: Give two examples of the Scale Factor Error (one of the types of systematic error).

A: We need to give two examples of scale factor error.

Q: list at least 10 scientific journals of chemical analysis of a certain analyte using a specific…

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Q: In your own words, describe the following terms as used in analytical chemistry.  a)…

A: a) semiqualitative analysis Answer -  Qualitative analysis is the detection or identification of the…

Q: A 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali and the following…

A: Given data :- 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali Volumes…

Q: The determination of copper in a sca water sample gave a mean value of 77.81 ug/L and a standard…

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Q: II. lodometry II. Permanganate IV. Dichromate

A: Indicators can be defined as the  substances that change colour when they are added to basic or…

Q: What is a standard deviation in analytical chemistry?

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Q: What impact would using a much smaller sample have on the accuracy of your results

A: A sample size that is too small increases the likelihood of a Type II error skewing the results,…

Q: I The difference in standard deviations for the two instrumerntal methods is significant. II The…

A: F-test formula helps to perform statistical test. This test helps in finding that whether the two…

Q: Volumetric Target concentration Mass of mixture Amount of ammonia flask added required 0.43 gl)…

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Q: A student performed chromatography on a mixture of benzoic acid (C₂H5CO₂H), acetophenone…

A:

Q: Trituration is a process of reducing particle size which involves the addition of an appropriate…

A: There are various method of reducing the particle size such as grinding, mechanical mixing etc.

Q: explain why data analysis is important to validate results

A: When we perform an experiment in chemistry. We obtain practical data carried out in order to find…

Q: 6. If we were to generate a sampling distribution of means based on a sample of size of 50, what…

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Q: In the determination of the concentration of chloride ion in water five experiments were done: 254.3…

A: Given,  Concentration of chloride ion in water five experiments were: 254.3 ppm, 254.7 ppm, 249.9…

Q: Describe the differences between gravity and vacuum filtration

A: Please have a look on the solution:

Q: Arrange the measurements in ascending order: 0.001 m, 0.001 km, 1 pm, 0.1 mm, 10 cm, 100 um, 1000 nm

A: Arrange the measurements in ascending order--

Q: Calculate the mean, standard deviation, coefficient of variation given the following data Initial…

A: mean= (30.95+ 0.05+ 30.95+ 0.05) ÷2 = 30.95 ml+ 0.05ml = 31.0ml Standard deviation= (31.0-30.95)2…

Q: 3. Calculate the average deviation of the densities and comment on the precision of the…

A: The question is based on the concept of analytical chemistry. we have to calculate average deviation…

Q: List and define the indicators that are used to assess the performance of a specific analytical…

A: indicator PH RANGE COLOUR IN ACID COLOUR IN BASE METHYL ORANGE 3.1-4.4 RED ORANGE METHYL YELLOW…

Q: This part of the analytical process is usually the most difficult step and the source of the…

A: 1) Choosing a Method  The choice is sometimes difficult and requires experience as well as…

Q: Please try to answer both in 1 hour

A: 22) E  23 )B

Q: Which of the following is not a way of expressing data reliability:   Statistical Tests   Sampling…

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

Q: what is chromatography?

A: Chromatography is a method which helps to separate and analyze mixtures of compounds.

Q: Calculate the mean and 90% confidence interval for the data set. Sample Value 8.0626 8.0650 3 8.0583…

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Q: A certified reference material of lead in calcium carbonate is analyzed by a laboratory and found to…

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Q: STATISTICAL DATA IN CHEMICAL ANALYSIS: Calculate the mean and standard deviation of the data below.…

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Q: Why is strict implementation of LQMS (Laboratory Quality Management System) or GLP is necessary ?…

A: Please find your solution below : The strict implementation of laboratory quality management system…

Q: Density of solution: Trial 1: 1.2 g/mL Trial 2: 1.2 g/mL Trial 3: 1.2 g/mL Average density = 1.2…

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