Shivani Gosine FS_9002_L07_Fractography

What are the uses of Laboratory Apparatus below: 1. Aspirator or Pipette Bulb 2. Evaporating Dish 3. Mortar and Pestle 4. Graduated Pipette 5. Acid Burette 6. Spatula 7. Stirring Rod

Polymers lab question: Please explain the effect of crosslink density on swelling properties og gel.

Soil Lab 11a Direct Measurement of Soil Porosity 1. Fill a 100 ml graduated cylinder to the 100 ml mark with tap water. Tilt the beaker containing the soil sąved from Step 3 in the Bulk Density Determination to about a 45 degree angle. Pour the water very slowly onto the soil in the beaker. Stop adding water when the soil pores are filled (saturated) and the soil surface glistens. 2. Allow the soil to stand for several minutes to make sure the water has filled the very small soil pores. Any excess water can be returned to the graduated cylinder. Don't stir or shake the mixture. 3. Determine the amouht of water used to exactly fill the pote space in the 100 cubic cehtimeters of soil. Subtrąct the reading of water level on the side of the graduated cylinder from the original volume of 100 ml. Note that the water which was poured onto the soil exactly filled the pore space and thus equals the total pore volume by direct measurement. 4. Record your results below and make the necessary…

7. Describe two ways to fold a filter paper to be used for filtration. Include diagrams for the step-by-step preparation of the filter paper.

Fill in the blanks: Silica ____ has a larger surface area than particle type ___

___________Beer's Law can be applied to what spectroscopic techniques?   All choices are correct   AAS   FT-IR   UV/Vis

The diamond could cut/scratch the glass, this is a manifestation of what property?   a. hardness b. tensile strength c. brittleness d. flexibility

MRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the body

Compare and Contrast any two microscopy techniques.

Graphene is a __________? a. metallic nanomaterial b. carbon nanomaterial c. quantum dots d. metallic nanoparticles

The Biorefining process involves a number of steps. Select all that apply a. grinding it into sand size particles b. adding chemicals to dissolve the powdered waste into a solution c. microbes are added that latch onto the metal by selective biosorption. d. microbes are filtered and refined into a solid e.microbes are recycled for a new batch

2- While using organic solvent like chloroform (CHCl3) in the visible region measurements what cuvette material you would use? A) Glass B)Plastic C)Glass or Quartz D)Any of them E) Quartz.

Mineral Properties (Color, Luster, Streak, Diaphaneity, Magnetism, and other Properties) Research Part 2 A. Enumerate five other properties of minerals that is dependent with light and explain each Part 2 B. Which is more reliable to use in identifying minerals, streak or color? Defend your answer. Please put reference.

9.If we have three containers with water at different temperatures and in each one we drop 5 drops of vegetable dye, in which one will the dye diffuse faster? Immersive Reader A) 80°C B) 37°C C) 15°C D) diffuse equally

Analyte interacts with UV –Vis radiation UV radiation is between 200-300 nm and Visible light is at 400-800 nm.     Both statements are correct.     1st statement is True. 2nd statement is False.     1st statement is False. 2nd statement is True.     Both statements are False.

HDPE and PS are both inert to bases and acids, which plastic would you rather chose to put 1 Liter of 6M HCl for general chemistry lab? Explain why.

- attempt- Q5: Select the correct answer for the following multiple-choice questions: 1. Asphalt penetration test can measure a. Consistency b. Aging c. Tension properties d. Safety 2. An emulsifier is commonly used to produce a. Tack coat b. Prime coat c. Emulsified asphalt d. Tar 3. The quality of performance of a soil as a subgrade material and group index are a. Inversely proportional b. Not related c. Directly proportional d. All of the above 4. The sieve that separates fine and coarse aggregates in asphalt mixture design is d. No.40 c. No.10 5. Kerosene is used as a solvent to produce a. Tar b. Emulsified asphalt c. Cutback asphalt a. No.200 b. No.4d. Oxidized asphalt

Think about the situation where you are investigating the relationship of study time vs. exam grade.a. Which variable would be on the x-axis (and why)?b. Which variable would be on the y-axis (and why)?c. Would you expect the slope to be positive or negative (and Why)? 2) Contrast and compare interpolation with extrapolation. Which is “safer” to use and why?3) Look up how “the best fit straight line” is constructed. The term “Least squares” should be in your explanation.4) If I plot some data and end up with a r2 of (-) 0.99, is my plot useless? Explain.

Sublimation is preferred over recrystallization when you work with an amount of solid material to be purified that weighs: A) at least 1 kg B) about 100 mg C) about 1 mol D) about 1000 ml A OD

Which of these statements is not true for levigation? Select one: a. process of making paste b. uses a spatula by mixing the ingredients on a slab following the figure 8 c. uses electrically operated grinders d. used to incorporate solids into dermatologic, ophthalmic ointments or suspensions

No copy paste from internet other wise will give dislike

Why is paper used for weighing dry, non-hygroscopic chemicals only? Why is watch glass used otherwise?

1. Bromothymol blue indicator is color yellow in an acid solution and ______ in a basic solution. A. Clear B. Blue C. Red D. Violet How much time was taken for the disappearance of blue-black color to test tube 2 with 20 degrees Celsius temperatue? A. 6mins B. 4mins C. 2 mins D. The color did not disappear

Give reason why platinum, gold and silver are used to make jewellary.

Which of the following is NOT true? Select one: a.SEM is used to analyze the chemical composition, structure, and shape of nanoscale materials. b.SEM can resolve features both inside and outside the focal plane. c.SEM magnification and resolution is limited by diffraction. d.SEM uses an electron beam rather than light.

This section in a Safety Data Sheet contains information on the density, evaporation rate, pH value, and flashpoint of the material, among others. * Physical and Chemical Properties Handling and Storage Stability and Reactivity O Accidental Release Measures

Why are the proper use and care of microscope very important in microscopy?

15. Can provide a protective effect against UV is a quality characteristic of cosmetics on the side…. A. eficacyB. usabilityC. safetyD. stability

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

Which of the following correctly describes the stationary and mobile phases for a reversed-phase HPLC separation? a) polar stationary phase, polar mobile phase b) non-polar stationary phase, non-polar mobile phase c) polar stationary phase, non-polar mobile phase d) non-polar stationary phase, polar mobile phase

Answer the following question

how does the intermolecular force of attraction lead to stain removal?state reference