The calculated Ccal will _________ if you insert into the test tube the thermometer and stopper after 5 minutes of adding the base in calibration.

Q: Why would precision not matter when you are calibrating a pipette? Background info: You are counting…

A: Titration is the quantitative method of estimating the strength of the any component. Molarity is…

Q: what are the adavantages of the internal standard method compare to calibration curve method

A: In internal standard method, an internal standard filled in the same matrix as the analyte filled.…

Q: The data system; controls all modules of the HPLC instrument; takes signal from the detector and…

A: Ans: Computer

Q: A basic maintenance procedure for an analytical balance includes:

A: A basic maintenance procedure for an analytical balance includes removing the balance pan and…

Q: accuracy of the following instruments: a. analytical balance b. top-loading balance c. serological…

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

Q: What is the purpose of the internal calibration mass at the upper left in the electronic balance

A: In chemistry the accurate measurement of mass is needed for performing titrations, reactions. For…

Q: Is the separation of the mixture shown here a physical orchemical process?

A: SOLUTION: Step 1: The separation of the mixture shown above (i.e. by column chromatography) is a…

Q: These technique are time consuming, costly and frequently needcomplementary information about sizing…

A: We will determine which techniques are time consuming costly and frequently need complementary…

Q: Lowest melting point Answer Bank

A: Lattice energy depends on distance between two ions ( cation and anion ) and also depends on charge…

Q: liquid

A: ✓Eluent is the portion of the mobile phase, which carries the sample components with it. In liquid…

Q: Give two examples of the offset errors

A: Offset error arises due to the initial point is not calibrated to zero.

Q: Effect of this error in chromatographic work: Too much sample is applied to the paper.

A: Answer - chromatography - Chromatography is a laboratory technique for the separation of a mixture.…

Q: Explain why you can only hold the chromatography paper by the edges? What would happen if you touch…

A: Mixture is a type of matter which is composed of two or more substances. These are called as…

Q: Please I want you to write a sample on ‘results and discussion on the identification of laboratory…

A:

Q: Why does the separation apparatus must be vented after several inversions? to make the stopcock…

A: The mentioned procedure in the question is commonly used technique during extraction.

Q: Label the parts of this chromatography column. "A" "B" "C" "D" "E" "F"

A: Chromatography -  It is a laboratory technique used for the seperation of a mixture. The mixture is…

Q: Select which of the following ways gas chromatography can be performed? A. Only in columns B. Only…

A:

Q: Differentiate the two equipment: (Equipments used for Measuring Liquid) and (Equipments used for…

A: For solid we measures weight and for liquid, we measures the volume  .

Q: Match the set-up with the appropriate separation technique. : filtration * distillation

A: In the given question, the experimental setups of two separation techniques are provided and they…

Q: Column Chromatography Chromatographic Separation Fresh solvent = eluent Mobile phase Sample…

A: A is more polar Because the stationary phase is polar, polar molecules will spend more time adsorbed…

Q: with

A: We know that LAS i.e linear alkyl sulfonate is an anionic surfactant used in detergent and cleaners.…

Q: (10) In calculating r, values during tlc analysis the distance run by the sample and by the solvent…

A: Various techniques are used to analyze the compounds present in a mixture. Chromatography is one of…

Q: Why do we need to press “tare” when weighing in an analytical balance?

A: Solution Analytical balances square measure used for terribly correct, quantitative measurements of…

Q: Why is important to dry a primary standard to a constant mass ?

A: A primary standard is a reference chemical used to measure an unknown concentration of another known…

Q: Table 3 Burette Reading (NaOH) Initial Final Trial reading reading Δν Added Volume: AV (V1) (V2) 1 O…

A: Trial 1 Initial reading on burette V1 = 0 mL Final reading on burette V2 = 16.2 mL Change in volume…

Q: The volume of the solution that can be measured with 5-10 microliter pipette and 2-20 microliter…

A: Volume of solution that is measured using a 20-200 microliter pipette is 0.02 mL to 0.2 mL. Hence,…

Q: lect the correct response(s): Test Tube Holder Used for holding test tubes when heated. Beaker Tongs…

A:

Q: andard method, procedure, and/or reagents for optimization of parameters: standar

A: Standard jar test is used to remove suspended solid matter from waste stream.

Q: Why were you required to handle the chromatographic paper only at its corners?

A: Chromatographic papers used in Paper Chromatography which is used as a separation technique for the…

Q: ds Iitensive or extensive. Intensive Extensive Answer Bank temperature color volume boiling point…

A: The physical properties which does not depend on the amount of matter are termed as intensive…

Q: What is density, types of densities properties of a material, and suitable technique that can be…

A: Mass, volume, density etc. are the physical properties of a matter.

Q: During the course of an analysis for a solid sample, a loss of 0.40 mg occurs. Calculate the…

A: Relative error is defined as the ratio of absolute error to the true value. Here, Absolute error =…

Q: (a) Initial Buret Reading (b) Final Buret Reading Trial 1 Trial 2 Trial 3

A: For reading the buret value our eye must be at the level with bottom meniscus of the liquid. Reading…

Q: 16. 17. 18. -20 85 98 19 84 97 Graduated cylinders #16-18 were mL. L. measuring increments of

A: The reading given are,

Q: the efficiency of a chromatographic column improves the measure that a.increases the height of the…

A: The efficiency of column chromatography depends on various factors such as the number of theoretical…

Q: n is used in chemistry laboratory ass rod with bulb. 100

A: False . It is called as pipette  used in Chemistry laboratory.

Q: In thin layer chromatography, the stationary phase is made of and the mobile phase is made of solid,…

A: Thin layer chromatography: TLC is a chromatography technique used to seperate non-volatile mixture.…

Q: Mass analyzer in massispectrometry:

A: Mass spectrometry measures the mass of samples on the basis of M/Z ratio. In this sample is…

Q: How to use the analytical balance properly?

A: Analytical balances are designed to measure small quantities of mass. It has a glass chambered setup…

Q: Suppose Megan needs to transfer 5.00 mL of a liquid with high precision and accuracy. Which of the…

A:

Q: Retention time is the time taken for the mobile phase to reach the detector.   True False

A: Answer - The above statement is false  Explanation - Retention time - Retention time is the sum of…

Q: Categorize each as a determinate or an indeterminate error and further classify determinate errors…

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

Q: If an uncalibrated 5 (±0.03) mL pipet is used to deliver a total of 15 mL, what is the uncertainty…

A: Given data:  The volume of pipette used=5 mL The error in the volume of 5 mL pipette=±0.03 mL The…

Q: Why do you need to “tare” the digital balance before use?

A: we need to tare the digital balance before using because we only want the mass of the substance we…

Q: In analytical instrument the stimulus can be digitizer or plotter. O True O False

A: In analytical instrument the stimulus can be digitzer or plotter. We have to say wheather the…

Q: Neoy for PSEF (lea) く

A: These Are the organic reaction which takes place in presence  of heat and nucleophiles . The…

Q: 5.) The literature value for the Ksp of lead(II) chromate is 2.8 x 1013. Calculate the percent error…

A: Error in any experiment is the difference between the expected and actual values. Percent error is…

Q: b) Name four types of gas chromatograph (GC) column.

A: