Q: A student wants to determine how different factors affect the rate of dissolving a solid in water.…
A: Introduction: Solubility is defined as the tendency of a substance to dissolve in liquid. The part…
Q: With the knowledge on analytical separation and analyses, outline a suitable analytical separation…
A: Water can be polluted by different natural phenomenon and also man-made activities.This must be…
Q: with your knowledge on analytical separation and analysis, outline a suitable analytical separation…
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Q: If you have an empty burette in a burette clamp, in what order do you do these steps to fill the…
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Q: What are two characteristics of good recrystallization solvent for given compound
A: Recrystallization is the most important process to purify the non volatile solvent.
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Q: A sample of galena is contaminated with zinc blend. Name one chemical which can be used to…
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Q: This step involves the assessment of the polarity of the solute relative to the front Application of…
A: A question based on analytical separations that is to be accomplished.
Q: Describe chromatography. Include the following words: Physical change, Intermolecular Forces,…
A: physical change: A change in the physical condition and properties of substance that is change.…
Q: A supporting electrolyte is usually added to the analyte solution to minimize solution…
A: 1. SOLUTION - The correct option is (a) minimize solution resistance According to the question -…
Q: How sedimentation rate got influenced by particle mass ?
A: The process of settling down of a particle due to gravitational pull is known as sedimentation.
Q: Arrange the following steps in the correct order. I. Prepare the separatory funnel. II. Mix and…
A: I. Prepare the separatory funnel. V III. Add the solution to be…
Q: what is the difference between liquid phase extraction and solid phase extraction
A: A question based on analytical process that is to be accomplished.
Q: How is recrystallization of an impure solid accomplished?
A: Recrystallization is a technique used for the purification of a solid from impurities.
Q: Coprecipitation that involves foreign particles? a. Inclusion b. Mechanical entrapment c. Surface…
A: Co-precipitation :– The concurrent precipitation of more than one compound from an solution.…
Q: Why chromatography is an important tool for analysis of organic compounds?
A: Chromatography is the most useful technique for identification or separation of different compounds…
Q: Why is recrystallization not applicable to samples which contain large amount of impurities?
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Q: A student wants to determine how different factors affect the rate of dissolving a solid in water.…
A: Given that, To determine the factors affecting the rate of dissolving a solid in water, a students…
Q: List five factors that affect the retention time.
A: Retention time is a measure of the time taken for a solute to pass through a chromatography column.…
Q: Flowchart example of Recrystallization
A: Recrystallization is one of the methods used for the purification of a sample. The basic principle…
Q: In reference to surface chemistry, define dialysis.
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Q: What is the final dilution when you perform a 1/5th serial dilution five times?
A: The final dilution when you perform a 1/5th serial dilution five times as given below.
Q: ΔHrxn
A: The magnitude of ∆Hrxn of HNO3 will increase when a chemist uses a wet pipette in transferring the…
Q: Write the dispersed phase and dispersion medium of paints.
A: Colloidal solution contains two phase: dispersed phase and dispersion medium.
Q: In analytical chemistry, when and why do we do representative sampling?
A: Representative sample is defined as the small portion of the overall sample to determine the…
Q: B) Assess the critical aspects of chemistry involved in sedimentatic
A: Process and aspects of sedimentation . This term used in geology or geochemistry.
Q: 5- Vacuum fractional distillation of crude oil, when performed, allows the distillation of the most…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: What is reflux and what is it used for?
A: In a chemical reaction when vapor produced under heating will get condense and return back to the…
Q: A student wants to determine how different factors affect the rate of dissolving a solid in water.…
A: With increasing in temperature, particles are dissolved more rapidly due breaking of solute-solute…
Q: With your knowledge on analytical separation and analyses, outline a suitable analytical separation…
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Q: . What is the difference between temporary and permanent hardness?
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Q: use analytical separation and analyses to outline analytical separation method protocols that can be…
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Q: What is the theory behind recrystallization purifying a solid?
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Q: Question 2 a. Define the following i. Retention time and ii. Void time
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: Difference between gravimetry and volumetric methods
A: Introduction : Titration is a process in which chemical analysis of the quantity of some consistent…
Q: Create a flowchart for the procedures in the determination of water hardness.
A: A question based on determining the hardness of water, which is to be accomplished.
Q: What roles do solvent, density and polarity play in liquid/liquid extraction
A: i. Solvent = In liquid - liquid extraction, the solvent which is needed to be extracted should not…
Q: Prepare 100ppm of Cd (NO3).4 H2O in a 500ml
A: Given information, Concentration (in ppm) = 100 ppm Volume of solution = 500 mL
Q: If you have an empty burette in a burette clamp, in what order do you do these steps to fill the…
A: It is the titration experiment.
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A: Substances used to eliminate dirt such as stain, mud, unpleasant smells and clutter on surfaces are…
Q: Prepare a procedural flow chart that provides a simplified overview of the entire extraction…
A: The procedural flow chat of extraction process is explained in step 2.
Q: e hydrogen-bond acceptors.
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- Why is the glucose assay one of the most common analytical test performed in clinical chemistry.what is the significance of gravimetry analysis?What are the types of gravimetric methods? Give an examples where each method is used in an analysis. What is particulate gravimetry? When do we use this technique?
- Indicate which of the two filtration techniques, gravity ( G ) or vacuum ( V ), is suitable for each of the following operations. a) Hot filtration b) Removal of decolourising carbon c) Isolation of recrystallized solute from solution.4. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value.Color BEFORE adding Color AFTER adding Intensity of color AFTER adding FeCl3 Test Tube # FeCl3 FeCl3 #1 (salicylic acid) clear lilac 100% #2 (commercial aspirin A) clear slightly pink 50% #3 (commercial aspirin B) clear lilac 95% #4 (aspirin from your clear pink 20% synthesis above) #5 (control) clear clear 0% Based on this data and the melting point of Aspirin, how pure is the synthesized product?
- Which analytical separation method is best for recovering river bodies that are polluted by heavy metals and particulate matter. Explain your analytical process of choice.Table 2: Absorbance Values of Standards and Unknowns. Sample Blank Standard Solution 1 Standard Solution 2 Standard Solution 3 Standard Solution 4 Standard Solution 5 Water Sample 1 Water Sample 2 Phosphate Concentration (in ppm) Y17 0 ppm 0.02 ppm 0.04 ppm 0.08 ppm 0.16 ppm 0.32 ppm Freeman Lake 0.001 0.325 0.292 0.413 0.315 0.039 0.054 0.049 Absorbance at 2= 690 nm Calculations: 1. Construct a phosphate standard curve in Excel by plotting concentration (in ppm) on your x-axis and Absorbance (unitless) on your y-axis for your known solutions. Label the axes on the graph and provide the curve with a title. Use a linear trendline to generate a best fit line to your data. Label the graph with the equation and the R" value. Insert your labeled graph in the space below. Xuse analytical separation and analyses to outline analytical separation method protocols that can be employed to recover extremely high deposit of heavy metals and particulate matter in the river making wholesome for drinking in illegal mining communities .