Which of the following are exact numbers? Select all that apply. 30 ft 6.70x108 hrs 1 ns = 1x10-9 s 1 kg = 2.205 lbs

Q: What is the volume of added acid at the equivalence point? Express the volume in milliliters to two…

A: The graph for pH versus volume of the acid added is given below : We have to calculate the volume…

Q: Write a synthesis for this Organic Chemistry Reaction.

A: cyclohexane-1,4-dione undergoes aldol condensation with formaldehyde in the presence of strong base…

Q: Part IlI: Determination of Saturated Solutions

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Q: lease don't provide handwriting solution

A: 1H-NMR spectroscopy is mainly used for the identification of the complete structure of an organic…

Q: B) How the softening of tap water is carried out?

A: Hardness of water is due to the bicarbonate, chloride and sulphates of Mg2+ and Ca2+. This water is…

Q: You are given a protein solution with a concentration of 0.15 mg/ml. Suppose that we want to prepare…

A:

Q: 2 ml 1 ml 1 ml 1 ml STOCK solution colored- dye bottle 1 mg/ml A B C D E Volume of water 4ml 4ml 4ml…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the amount of…

Q: Describe the cleansing action of soap and detergent

A: cleansing action of both soaps and detergents results from their ability to lower the surface…

Q: Arterial fluid is what is in the bottle, arterial solution is the mixture in the reservoir. True

A:

Q: Data Table 1 Enter the calculated molarity and measured conductivity values in the table. Data Table…

A: Note: Conductivity values comes from the readings of Conductometer. Molarity can be calculated as:…

Q: Is gel hand sanitizer classified as a solution?

A: In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a…

Q: What does the process of recrystallization accomplish? 1) Place toxic chemicals into pure materials…

A: Recrystallization is the process of purification of organic compounds. Hence, the process of…

Q: How much diluting fluid would be required to make 100 mL of a 1/100 dilution from an undiluted stock…

A: First the given data Final volume = 100 mL Dilution = 1/100 Find out the diluting fluid volume

Q: Write a conclusion based on the result above

A: A question based on Beer-Lambert law, which is to be accomplished.

Q: Select all of the statements that are true about the melting point of an impure compound. The mp…

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Q: According to the USP, the percentage purity of ascorbic acid in tablets must be 90.0% to 110.0%. The…

A: The answer is shown below.

Q: -S NaCN H₂0

A: In an SN2 (Substitution Nucleophilic Bimolecular) reaction, sodium cyanide (NaCN) can act as both a…

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: Calculate the water content of antibiotic powder weighing 350 mg. The water equivalent factor is 4.6…

A: The % of water content in the drug is determined by the formula is shown below. The antibiotic drug…

Q: Name of chemical Molecular weight Amount used Number of millimoles Ethyl acetoacetate 130.14 g/mol…

A: Given: Table of ingredients with chemicals, their molecular weight, amount used and number of…

Q: How to separate water and alcohol using salt? What ks polydensity bottle?

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Q: How many kilograms (kg) of 20-20-20 soluble fertilizers should you add to a 50 gallon concentrated…

A: 20-20-20 fertilizer refers to a NPK fertilizer having N:P:K = 20:20:20.

Q: Perform calculations to determine the amount of 5.00x10-5 M stock solution needed to prepare 20.00…

A: The dilution of solutions is an important process in chemistry that involves reducing the…

Q: what is the chemical formula of 40% LiCl solution absorb water? How does 40% LiCl solution absorb…

A: 40% of lithium chloride has formula LiCl or CILi as, Lithium Chloride has the chemical formula LiCl…

Q: A…

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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: Suppose you measure a volume of 9.0 mL and a mass of 7.04 g for your first distillate. What is the…

A: Density -  Density is basically the degree of compactnesss of a system.

Q: A student was given a stock ascorbic acid solution of 2.323 mg/L. Following the directions in the…

A: Concentration of stock ascorbic acid solution = 2.323 mg/L

Q: How much of copper sulphate pentahydrate we need to prepare 0,5L 0,1 M solution?

A: Given, Molarity of the solution = 0.1 M = 0.1 mol/L Volume of the solution = 0.5 L mass (in grams)…

Q: 1) Calculate the volume of the concentrated sulfuric acid required. 2) What precautions are required…

A: Above equation is necessary for calculate the volume of concentrat H2SO4

Q: “Oh man, our supply person didn’t put in our order for 70% alcohol. All we have are liters of 100%…

A: Given that, alcohol with concentration of 100% and 90%. we have to make different concentration of…

Q: what does it mean to have 12% of percent error while conducting an experiment in determining the…

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Q: Most of us have had a glass of water from a Brita® pitcher. What is inside of a Brita® filter…

A: The Brita filter cartridge is composed of copolymer of styrene methyl methacrylate.

Q: Describe the cleaning action of soap

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Q: Ter solution differ from an unbuffered solution

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Q: How does sugar preserve food materials? Is it a better preservative than salt? Why or why not?

A: Please find your solution below : In food materials, sugar helps to preserve the colour, texture and…

Q: 24. The dose of AUGMENTIN oral suspension for a patient is 5 mL b.i.d. Each 5 mL of suspension…

A: Given that,  The dose for patient = 5 mL And number of times taken in a days  = 2 times  (b.i.d.)…

Q: Solid particles in water may exist in 3 ways - dissolved, dispersed, or suspended. (True/False)…

A: Answer-1 True   Explanation: Solid particles in a solution can exist in 3 different forms. When they…

Q: 500 ml of 2000 ppm of sodium chloride is equal to 1g False True

A: ppm means parts per million. ppm is also expressed in (mg/L). In the case of solute (solid)…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.