In this treatment level, part of suspended solids and suspended organic matter is removed. * Secondary Preliminary Tertiary O None of the above
Q: Br2, H20 c) DMSO (solvent)
A: . IT IS AN ADITION REACTION(HaloHydrin formation reaction) .UNSATURATED…
Q: a common preservative used in hematology and blood bank
A: Different types of preservatives are used as per the laboratory requirement. Preservatives used in…
Q: 13. Clean and store the equipment correctly after every use. _14. Cleaning is an effective way to…
A: Clean and store the equipment correctly after every use. Answer : true Reason : it will give better…
Q: article size and g d on three variah
A: The synthetic precipitation can be used. The transformation course into strong over substance can be…
Q: A culture is incubated for 10 hours. 1 hours after inoculation it reached the exponential growth…
A: Solutions- Data given- Time = 10 hrs, 1 hrs after inoculation (initial). 4 hrs after inoculation…
Q: 5. Which tablet size and the liquid combination resulted in the fastest dissolution times? A.…
A: Few questions based on introduction to chemistry that are to be accomplished.
Q: Sensorial analysis of natural food colorants do not include: a. Visual b. Flavors c. Weighing d.…
A: Q.(1). Introduction: Sensory analysis of the food analysis examines the many physical appearances of…
Q: Which solvent should be used to wash the solid material collected from a filtration? Select one: The…
A: The process which is used for the separation of solids from liquids or gases using a medium like…
Q: Which compounds used in this lab are toxic in aquatic environments and should not be rinsed down the…
A: The toxic chemicals in the aquatic environment is
Q: .Write any two safety measures he can follow while heating a solution in a test tube.
A: The safety measures can be follow while heating a solution in a test tube.
Q: During the desorption study, you used 10, 15, and 20 μL of 10% hydrogen chloride. Determine the…
A: Given: Volume of solutions used are 10 μL, 15 μL and 20 μL. And the %(m/v) of the HCl in solution =…
Q: D. Solvent Extraction Samples Upper phase Lower phase Oil + Water Kerosene + Oil
A: Solvent extraction or liquid-liquid extraction is a technique in which the mixtures of compounds are…
Q: Hydrogen Peroxide. Two day treatment of 200mg/L. Day one: 35% PeroxAid Day two: 31% PeroxAid Fish…
A:
Q: All experiments that produce noxious and toxic fumes and gases must be performed under the sink. A…
A: Noxious and toxic fumes and gases produced by all experiments must be performed in well ventilated…
Q: What three areas are affected by an "irritant"? (refer to ACS Safety in the Academic Chemistry…
A: An irritant is a chemical that causes damage to sensitive parts of the body like eye, skin and…
Q: 3. What should be worn in a laboratory at all times to decrease the likelihood of eye injury? What…
A: The safe practises to be followed in laboratory to decrease eye injury .
Q: g. ´N´ CI
A:
Q: Charcoal is a good absorbing agent due to its large surface area that can attract particles to its…
A: To solve this problem we have to know about charcoal .
Q: Weigh out around 0.3 g of cobalt chloride hexahydrate, CoCl,-6H,O, and place it in a clean, dry…
A: Equlibrium reaction of cobalt chloride hexahydrate with ethanol is given below.
Q: In lab this week, assume you use a 25.00-ml volumetric pipet to transfer the standard red dye…
A: Volume of stock solution taken (V1) = 25 mL Volume of the solution made in volumetric flask (V2) =…
Q: Consider the following data that was collected for a protein that contain 0.76 % tryptophan amino…
A: The absorbance v/s concentration data given is, Absorbance Concentration (mg/L) 0.0250…
Q: Which PPE should the experimenter wear when performing the experiment in the lab? O Apron…
A: Usually an experimenter wear Apron in laboratory when performing the experiment in the laboratory…
Q: Use the MSDS for potassium permanganate to identify the hazards with which it is associated. Choose…
A: Material Safety Data Sheet (MSDS) is a type of digital document that gives all the detailed…
Q: Importance
A: Water sampling is very important for the correct outcome of water analysis. Using the correct…
Q: visual differences between the hydrated sample and the dried, anhydrous form?
A: Hydrates are the ionic compounds that contain free water while anhydrate molecules do not contain…
Q: Can you please help me with number 10
A: Molar mass is the sum of mass of all its constituents.
Q: Which activities are likely to cause contamination of stock chemicals in the laboratory?
A: Answer - Contamination of stock chemicals in the laboratory - The most common biological…
Q: Determine each statement if it describes dissolution or disintegration. It is mainly affected by…
A: Dissolution means the disove of substances in different solvents. It is applicable for solids,…
Q: Can you explain how to find the structure? And how to fill the NMR problem set
A:
Q: Information about a Water Sampler
A:
Q: Would you mind answering questions 4, 5, and 6? Thank you.
A: Given data: The volume of hypochlorous acid=10.00 mL. The half cell reactions: To find: IV) The…
Q: The dissolved coffee in hot water can be separated by which technique? a. using a magnet b.…
A: There are methods used to seperate two mixtures based on their properties. These methods depends on…
Q: is not a graded question i just need help! Please
A: Chlorination of alkanes is carried out in the presence of sunlight. It occurs by a free radical…
Q: 07 - Air Matte... CK 12 License Exploration Worksheet Page
A: The answer of the following questions are : 8- d. CH4 9- d. Nitrogen 10- a. Xenon,Xe 11- b.…
Q: Can I please get help on these
A:
Q: Unused chemicals from an experiment should be a. Disposed of in the proper container as…
A: Correct option is A. Disposed of in the proper container as indicated by the instructor.
Q: Hazard prevention techniques/tools before the chemical accident, types of PPE equipment's and any…
A: Hazard prevention techniques are very much essential while performing chemical experiments. Personal…
Q: 6. Explain the reason why a laboratory analyst should not return excess or unused chemicals back in…
A: 6) Answer - According to the question - The reason why a laboratory analyst should not return excess…
Q: Name an application of adsorption on carbon in daily life.
A: answer- application of adsorption on carbon in daily life Activated carbon is an effective adsorbent…
Q: The above solution was wrong when entered into homework site
A: Given reaction is : (a). 1 CH4(g) + 2 H2S(g) ---------->1 CS2(g) + 4 H2(g) Rate of decrease in…
Q: Which property of soil depends on the size of particles? O color O odor O temperature texture Mark…
A: Soil is made up of very tiny particles.
Q: Part 2 - Dilution series Concentration (M) Absorbance 30 55 75 85 92 0.100 0.0500 0.0250 0.0125…
A: Given
Q: Which one hardness type that remain after boiling process. O Temporary hardness. O Permanent…
A:
Q: Answer the third row (soap bubbles in the air). Please provide an explanation.
A: Original state of matter Resulting state of…
Q: pletion Status: product? OCH3 Na Octy work up Submit to save and submit. Click Save All Answers to…
A: Answer: option 2 is correct answer. This in interamolecular aldol reaction in which base remove the…
Q: Modified True or False. Analyte interacts with UV –Vis radiation UV radiation is between 200-300 nm…
A:
Q: A lower and/or broader melting point range for a compound after recrystallization most likely…
A: The temperature, at which the physical state of the substance changes from solid to liquid, when the…
Q: I'm stuck on this one. =( Using the Beer Law to calculate this solution. A standard solution has a…
A: Given the concentration of standard solution, C = 6 g/dL Absorbance of the standard solution, A =…
Q: The ______________ is the physical method of separation illustrated in this process: About three…
A: Answer The mixture form two separte layer. One is Aqueous layer and…
Q: Calculate the concentration in ppm of Cd in a 2.00 mL sample which has been shown to contain 16.4 μg…
A: Given :- mass of Cd in sample = 16.4 μg Volume of sample = 2.00 mL…
Step by step
Solved in 2 steps
- What is the arrow-pushing mechanism from Y to Z? Label the byproducts.Organic Chemistry Laboratory purposes: a. Why is it important to vent the separatory funnel (directed away from your face and body) after vigorous shaking? b. What is an disadvantage of using too little drying agent?what glassware and quipment is being used in this photo of lab equipment?
- Give the examples of emulsion prepare by these method:- 1)dry gum method 2)wet gum method 3)bottle gum methodThe key to a successful HPLC procedure is good sample separation which is represented by a clean peak for each individual compound. What should we do to ensure a good sample preparation? A. Use a column and a mobile phase with different polarity B. Use a column and a mobile phase with the same polarity C. Use a lower temperature higher than the mobile phase boiling point D. All of thosePlease don't provide handwrittrn solution...
- What are the ideal factors to consider for ranking these glove materials for toluene exposure31 and 32. pls help and show solution plsssNitrous Acid Test Procedure: Make a solution of 4 grams NaNO3 in 16 mL water. Put 2 mL of concentrated hydrochloric acid into a 10x75-mm test tube and add 0.5 ml of amine. Cool the solution in a water-ice slush to zero degrees celcius. Add the nitrile solution slowly, dropwise, until a drop of the reaction mixture gives a blue spot on starch-iodide paper. The following should be tested: (NOTE: Include the observations and reaction equation) A. PRIMARY ALIPHATIC AMINES (Like Butylamine of Cyclohexylamine) B. PRIMARY AROMATIC AMINES I. Aniline + nitrous acid; then heat. II. Aniline + nitrous acid; then B-Napthol.
- Which of the ff is not true about recrystallization? a. acetanalide recrystallized only at cold temp b. congo red stain is removed by using animal charcoal c. acetanalide can be dissolved in hot h20Part B: Preparation of an iron bipyridine complex Working in a fume cupboard: dissolve 0.10 g of anhydrous ferrous chloride [FeCl2] in the minimum amount of water, in a 100 ml conical flask and gently heat on a stirrer hotplate. To this slowly add 0.40 g of 2,2'-bipyridine dissolved in a minimum amount of ethanol and boil gently to concentrate the solution(ensure that the mixture does not boil dry) leave the mixture to cool to room temperature. To the solution add sodium tetrafluoroborate (0.20 g) dissolved in the minimum amount of water. Leave the solution several minutes to allow the precipitation to occur. Filter the product by vacuum filtration and wash the mixture with ethanol (1 ml) and diethylether (10ml). QUEESTION: Write a balanced equation for the preparation of the iron(II) bipyridine complex9. Any organic solvent waste generated in this experiment should be collected in your fume hood and poured into the waste container as directed. This waste should not be poured down the drain. True False