A sample of water contains a level of NH,", Ca²", dissolved chloroform and bacteria. Design a method to treat that sample.

Q: Be sure to answer all parts. A 2.20-L sample of water contains 165.0 µg of lead. Calculate the…

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Q: Explain different ways to induce recrystallization.

A: Recrystallization is a process in which the previously formed crystal were dissolved in a suitable…

Q: to reach the

A: To find the amount of chlorine added is given as,

Q: 20 ml of 0.1 M sodium hydroxide is required ---- ml of 0.1M sulphuric acid at end point A- 10 B- 40…

A: Given: Molarity of sulfuric acid is 0.1 M. Molarity of NaOH is 0.1 M. Volume of NaOH is 20 mL.…

Q: Q1\ Answer with (True ) or (False) of the following : -innoring utical 6- Burettes, pipettes item…

A: 6. False..Burettes used in chemical analysis and pipettes used in manual method.  7 True 8.False.…

Q: Commercial bleach is usually 5% solution of hydrochloric acid. true or false

A: Commercial bleach is usually 5% solution of hydrochloric acid. This statement is true or false…

Q: What would happen if the solute (salt or sugar) concentration exceeds that of the solvent’s? Would…

A: When the solute concentration exceeds to that of solvent then the solute particles become more in…

Q: A 12.0-mL portion of 3.00 M stock solution is to be diluted to 0.200 M. What will be the final…

A: Given that,V1 = 12 mL = 0.012 L M1 = 3M = 3 mol/L M2 = 0.200 M V2 = __ M1V1 = M2V2

Q: If I start with a 2M stock solution (my concentrate) and I need 200ml of a 0.8M solution how much of…

A: Given that  concentration of stock solution =2 M concentration of diluted solution =0.8 Mvolume of…

Q: Which property is the basis of the purification technique recrystallization? Select one: Color…

A: To solve this problem we have to know about purification technique recrystallization .

Q: A sample is analyzed for Pb. Is the ppm in a dry sample greater than,

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Q: If you start 200ml of a 6M solution and you finish with a 1000ml solution what is the concentration…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the…

Q: When adding 80mL of water directly to 20mL of a 0.40M sodium chloride (NaCl) solution, we obtain a…

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Q: PPb contains 1 part of solution per 10° parts of solvent. True False

A: Answer  PPb contains 1 part of solution per 109 parts of solvent  We know…

Q: Hard water is water that has Ca2+ and Mg2+, which results in deposits at the bottom of your kettle…

A: There are two types of water, hard water, and soft water. This based on the difference in minerals…

Q: A sample of water contains a level of NH4+, Ca2+, dissolved chloroform and bacteria. Design a method…

A: A sample of water can contain many ions and wastes that have to be removed before consumption.…

Q: Your boss advises you try to dissolve the tablet first in 100 mL of DI water. Your sample is a…

A: The dissolution process completely works on the principle of like dissolves like.

Q: Why do Sedimentation and filtration is important in water treatment? Is a period of timeimportant in…

A: Any process that improves the quality of water to make it suitable for a specific end-use is known…

Q: Methanol can be used to decrease the solubility of the non-polar component in a given sample.…

A: Yes you are correct The apparatus used in extraction of liquids is separating funnel

Q: Before starting this procedure, please calculate the following: 18 g phthalic acid fully dissolve in…

A: We know that, 1g = 1000mg  Therefore 18 g phthalic acid = 18000 mg phthalic acid.  Given that,  18 g…

Q: A 12.0-mL portion of 3.00 M stock solution is to be diluted to 0.200 M. What will be the final…

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Q: You need to prepare 2 methanol solutions for lab today: 300mL of 50% (v/v) methanol and 200mL of 25%…

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Q: What is the importance of hydration to wound dressing hydrogel?

A: Introduction :  Hydrogel is a network of polymer chains that are hydrophillic , they are highly…

Q: Vhat is the best course of action if solid material remains in the flask after the heating step of a…

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Q: Compare the three main purification methods (recrystallization, distillation, and extraction) by…

A: The three main purification methods are recrystallization, distillation, and extraction.. With the…

Q: How do you convert experimental solubility into grams per 100ml of water and kg per metric ton of…

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Q: An erythrocyte placed in pure water will lyse, but bacteria usually won’t. This is because…

A: An erythrocyte placed in pure water will lyse, but bacteria usually won’t.

Q: Preparing solution. Weigh out Sg of table salt. Dissolve it in 50mL of distilled water in a…

A: The concentration of a compound can be expressed in terms of percent mass per volume.  Write the…

Q: If any chemical gets into the eyes or mouth, go to the nearest sink and wash off with much water as…

A: The statement given is,

Q: Describe the steps involved in recrystallization.

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: Which type of mixture could most likely be filtered using filter paper? A colloid A…

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Q: 2. How many mL of 0.10 M H,SO, can be made from 50.0 mL of 0.25 M H,SO,?

A: Number of moles of solute to the volume of solution in liters is known as molarity.

Q: A sample is analyzed for Lead. Is the ppm in the dry sample containing Lead greater than, equal, or…

A: A question based on qualitative analysis, which is to be accomplished.

Q: How to make a 250 mL stock of 500 mM Tris-HCl, pH 8 and a 100 mL stock of 250 mM EDTA. Then, state…

A: Concentration or Molarity is defined as “the mole of the solute per unit volume of the solution”. It…

Q: A 50X stock of Bradford reagent would have to be diluted to a 1X working solution prior to use. How…

A: The solution whose concentration is known and used as a standard solution is called a stock…

Q: What lab equipment is used to manually stir solutions? thermomoter

A: In chemical laboratory various equipments are used these equipments are called apparatus  In any…

Q: 1. Calculate the percentage concentration of 10 mL ethanol in 50 mL water solvent.

A: Given, Volume of ethanol = 10 mL Volume of water solvent = 50 mL Percentage concentration can be…

Q: 28 ml of a 500 ppm methylene blue solution are added into 1.3 Liters of pure water.  Calculate the…

A: Parts per million (ppm) is an expression for mentioning concentration term and is equal to…

Q: In a test tube, dissolve 10 drops of methanol in 3 ml. of water. Oxidize a copper wire spiral by…

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Q: LIGHT SOURCE A B C Match each type of mixture to its correct letter. Suspension [ Choose ] Solution…

A: Those mixtures in which the solute particles are completely soluble into the solvent are known as…

Q: A 2L stock solution of 8M hydrochloric acid is used to create a 2.5M solution of what volume?

A: HCl Solution Initial volume of stock solution = V1= 2 L Initial Molarity of stock solution = M1= 8 M…

Q: Pre Lab Questions: (Each answer is to be written as a complete sentence) What is the reason for…

A: (1) Precipitation should be washed using distilled water, because there are some ionic impurities…

Q: The solubility of benzoic acid in water at 20° Cis 0.0029 g/ml, and at 100°Cit is 0.068 g/ml…

A: Since you have asked multiple question, we will answer only first question for you. In order to get…

Q: Miscible, slightly miscible, immiscible SAMPLE Water Dichloromethane Cyclohexane 1M HCl…

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Q: You are a workstudy for the chemistry department. Your supervisor has just asked you to prepare…

A: Given : Concentration of stock solution = 11.6 M Final concentration of solution = 1.50 M Final…

Q: Attached problem

A: Recrystallization is defined as the process in which grains of a crystal structure come in a new…

Q: * I have been studying for a chemistry exam and this is a sample lab that I have off of YouTube.…

A: 1.) The glassware you would require to perform dilution includes pipette, conical flask, funnel and…