A student sets up a paper chromatogram and places a spot of purple food dye on the origin. After five minutes the solvent has moved 14 cm and a red spot has advanced cm. After ten minutes the solvent has advanced a further 6 cm. Determine the distance from the origin is the red spot likely to be:
Q: Ture or False The coefficent of vriance is the half of standard deviation
A: The coefficent of variance is the half of standard deviation.
Q: 5. Here, you can find an example of a paper chromatography experiment. Use the two Chromatograms…
A: Paper chromatography is a analytical Method to separate coloured components. A drop of a mixture…
Q: 2. Several standards were chromatographed, 0.5 1.0 2.0 Conc (ug/ml) Peak area 5.0 10.1 17.2 and the…
A: The graph is to be plot by taking concentration(μg/mL) in X-axis and peak area in Y-axis.
Q: Which of the following are necessary steps in performing paper chromatography? I. Saturate the…
A: In paper chromatography the necessary conditions are 1. The chamber should be saturated with the…
Q: A student analyzes sample 1, and sample 2 chromatograms of a mixture containing two compounds (A +…
A: The two samples( Compound A+Compound B ) are undergone chromatography : Compound A and Compound B
Q: Analysis of a chromatogram of a mixture containing 0.0124 M analyte and 0.0448 M standard found that…
A: Known concentration of analyte = 0.0124 M Initial concentration of standard = 0.0448 M Area of…
Q: Describe what is chromatography?
A: Introduction: There are various methods to separate the mixtures like distillation, physical and…
Q: According to the chromatography the value of the distance traveled by the solvent is:
A: We need to calculate the distance traveled by solvent.
Q: chromatography
A: chromatography is a process in which the mixture is separated. In this process we dissolve the…
Q: Match the correct choices with the given. For gravimetric analysis, use this data to answer the…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Shown is a thin-layer chromatography (TLC) plate. In this case, a student decided not to line up the…
A: The R f factor is called retention factor. The expression to find out R f factor in thin layer…
Q: Which of the following statements about a gas chromatogram is correct? O Tailing indicates that the…
A: A question based on analytical separations that is to be accomplished.
Q: What type of components /mixtures can be separated by chromatography
A: Chromatography is a method which usually separate components of a homogeneous mixture based on the…
Q: What part fo chromatography is being descibe by the following?…
A: These all are the terms used in the chromatography.
Q: liquid
A: ✓Eluent is the portion of the mobile phase, which carries the sample components with it. In liquid…
Q: A student accidentally started the chromatographic run without saturating the beaker with the…
A: Saturation of beaker with a solvent is necessary as if it is not done it will lead to the…
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: Group
A: Dear student I have given answer to your question in the image format.
Q: One method for the quantitative determination of the concentration of constituents in a sample…
A: Given: The relative areas are 16.4, 45.2 and 30.2. The relative detector responses are 0.60,…
Q: Determine the weight percent (wt%) of selenium in the soil sample and find the absolute uncertainty…
A: Given: To Calculate: weight percent Se in the soil and the absolute uncertainty in the weight…
Q: A student accidentally started the chromatographic run without saturating the beaker with the…
A: Answer - The correct option is (d) All of the above Explanation - According to the question -…
Q: Effect of this error in chromatographic work: The solvent level in the developing chamber is higher…
A: Answer - Chromatography - Chromatography is a laboratory technique for the separation of a mixture.…
Q: Gas Chromatography can have which of the following stationery phases and/or mobile phases: O A…
A: In gas chromatography there are two phases , stationary phase and mobile phase . Mobile phase is…
Q: All of the following are classified as an instrumental method of analysis EXCEPT: A.…
A: The analysis in which we rely on the instrument is called as instrumental method of analysis.
Q: A three-component mixture containing compounds A, B, and C is separated by simple distillation. A…
A:
Q: Is the separation of the mixture shown here a physical orchemical process?
A: To explain whether the method of separation of mixture via column chromatography is physical or…
Q: a) Compounds with low boiling points tend to spend less time in the gaseous state than compounds…
A: The questions are based on the concept of gas chromatography. it is an instrumental technique of…
Q: What would be the effect of the following errors in chromatographic work? a. The solvent level in…
A: As per rules, only the first three subparts of the first question can be answered. Reasons behind…
Q: The significant test used to reject or accept any anomalous measurement is:" Gross sample test" None…
A: Anomalous measurements are measurements that differ from the other results.
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: Q.2 Choose the correct answer from the following? 1- In all chromatographie separations the sample…
A: Introduction :- Chromatography technique is a process used to seperate mixtures. In this technique…
Q: What is paper chromatography please include the importance of using it
A: Introduction : Chromatography can be defined as a technique for separating different component of…
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: Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument. True…
A:
Q: A method of quantitative determination of the concentration of constituents of a sample analyzed by…
A: Gas chromatography It is a chromatographic technique used in laboratories in which mixture of…
Q: Given below is a diagram of separation of two components of a mixture in a chromatographic column.…
A:
Q: You have obtained a gas chromatogram of a two component mixture of compounds A and B. The height of…
A: Given,Height of peak A = 3.84 cmWidth of A at half height = 1 cmHeight of peak B = 3.49 cmWidth of B…
Q: Which of the following statements is false? * O Chromatographic analysis is independent of film…
A:
Q: 5. What would be the effect of the following errors in chromatographic work? a. The solvent level in…
A:
Q: What would be the effect of the following errors in chromatographic work? A. The solvent level in…
A: The effect of the given errors in the chromatographic work has to be given.
Q: Use the data presented in Figure 2 as basis for your answer. The TLC plate used is 5 cm by 10 cm.…
A: According to the given TLC plate, Commercial analgesic dot A, show two signals at 1.5 cm and 3.9…
Q: Explain temperature programming for gas chromatography and what its benefits.
A: Temperature programming is used to run a large fraction of all gas chromatography. In this the…
Q: 1. A Urinometer was used to test a patient's urine specimen, it has a current specific gravity…
A:
Q: Which statement(s) are correct for gas chromatography? A) the components in a mixture can be…
A: To find, the true statement form the below, A) the components in a mixture can be identified from…
Q: The tolerance of a Class A 25 mL transfer pipet is +0.03 mL. A student uses an uncalibrated Class A…
A:
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: Determine if the following are systematic (instrumental, personal, method) or random errors. A. A…
A: A question based on tools in analytical chemistry that is to be accomplished.
Q: The tolerance of a Class A 10 mL transfer pipet is +0.02 mL. A student uses an uncalibrated Class A…
A:
Q: A student accidentally started the chromatographic run without covering the beaker with a lid. Which…
A:
Step by step
Solved in 2 steps with 1 images
- 11. Mrs. Folloso is preparing water in containers to sell in their water station. O A. filtration B. decantation C. handpicking D. magnetizing 12. Ms. Ramirez is separating some needles from other materials in the box. A. filtration B. decantation C. handpicking D. magnetizing 13. In the salt industry, men are using heating machines to make salt. * O A. filtration B. evaporation C. magnetizing O D. handpickingStatement A. Reading the meniscus could result to an determinate type of error. Statement B. Precision is the agreement between the data and the true value. Statement C. Accuracy is the agreement between the data and the true value. Choices: a. If only B statement is correct b. If statements A & B are correct c. If statements A & C are correct. d. If all statements are wrong. e. If only C statement is correct. f. If only the A statement is correct. g. If statements B & C are correct h. If all statements are correct.1. Consider the following data set. Concentration, mg/L 0.100 0.200 0.300 0.400 0.500 Write capital letters only on the space provided. 1. What is the slope? A. -0.064 B. 0.697 C. 1.429 D. -13.135 2. What is the y-intercept? A. -0.004 B. 0.004 C. 0.717 D. 10.141 3. What is the concentration of an unknown sample with an absorbance reading of 0.218? A. 0.156 B. 0.194 C. 0.242 D. 0.267 Absorbance 0.125 0.304 0.422 0.559 0.712
- How does the fractionating column make distillation more precise? A. The added distance gives more leeway for expanding gases so as not to explode. B. The added distance increases temperature of all vapors involved C. The added distance from the condenser forces heavier vapors to condense off early D. The added distance lets the thermometer get a more stable temperature1. Which of the following samples may be weighed on an analytical balance without a container? A.glass beads B. dry sand C.paper clips D.sucrose E. all the above 2. Touching the sample container with bare hands without gloves affects the mass recording of an analytical balance due to moisture on the hands. A. true B. FalseWhat I have Learned Activity 4: Match Me! A. Match column A with the description in column B. Write the letter of the correct answer before the number. Column A Column B 1. Motion 2. Velocity A. The object's motion has a constant speed. B. The length of the entire path of the object's motion. C. It is a change in position from the reference point. D. Refers to the rate of change in distance per 3. Distance 4. Displacement unit time E. The shortest distance between the object's two positions. F. A quantity which includes magnitude only. 5. Uniform Motion 6. Reference Point G. The frame of reference H. The speed of the object throughout its travel. I. A quantity which includes the magnitude 7. Scalar quantity 8. Vector quantity 9. Average Speed and direction. 10. Speed J. It is the rate of change in displacement.
- if you put salt water in an open container under the sun, the water evaporates leaving the salt behind. the process is called____. sometimes, it is called crystallization because the solid salt will form crystals as water evaporates. A. Decantation B. Filtration C. Evaporation D. DistillationPart II Graham's Law (average speed and molar mass) - Submicroscopic View Your observation 1. The speed of the particles is (circle one) a. Constant b. Variable C. same 2. The particles move in a between collisions. a. straight –line b. curved path 3. The speed of the particles changes following the collision with a. another particle b. the wall of the container c. both the wall of the container and another particle. Use the Track function explained earlier to help answer this question. 4. Collisions between particles or the walls of the container are elastic or not elastic. 5. The particles attractions to other particles. а. еxperience b. do not experience 6. The RMS speed of helium is as the mole of helium changes. a. constant b. variable 7. Record the RMS speeds of different gases in the following table. Table 1. RMS speed of gases Gas Не Ne Ar Molar mass g/mol RMS speed m/s 8. Is your observation of RMS speeds consistent the Graham's law of effusion, which states that rates of…What technique(s) would use to determine the identity of matter? A. Qualitative b. Quantative c. Any technique is useful
- You want to explore the different colors of ink that are combined to make the black ink in your dry ears marker. Which seperation technique would allow you to see that colors that make up the black ink? A. Filtration B. Chromatography C. Evaporation D. Distillationli! See Periodic Table A student calculates a mean concentration of 0.14522 M with a standard deviation of 0.012 M. How should you properly report the mean concentration? M1 What is chemistry? A. The study of composition of matter. B. The study of the behavior of matter and energy. C. The study of how living and non-living parts of the environment interact. D. The study of non-living components of the Earth. 2 What best describes matter? A. Any physical thing that has mass and energy. B. Any physical thing that has mass and volume. C. Any physical thing that has only energy. D. Any physical thing that is non-living. 3. What is mass? A. The amount of motion that an object has. B. The amount of 3-dimensional space the object occupies. C. The heaviness of an object because of a planet's gravity. D. The amount of material contained within an object. 4. Which is true about mass? A. Mass of an object will remain constant regardless of the location or motion. B. Mass of an object will be different on different planets because of gravity. C. Mass of an object will change as the object gains or releases energy. D. Mass of an object will change as the volume of…