Which of the following structures are aromatic? O O I-Z I-Z "N" , and H and Z-I I-Z "N" , and , and

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: Part IlI: Determination of Saturated Solutions

A:

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: 0.4ml to minims

A: ml and minims are unit of Volume   1 ml = 16.2307 minims 0.4 ml =0.4 × 16.2307 minims0.4 ml =6.49228…

Q: Importance of Standardization of NaOH

A: Standardization of a solution is done during the experiment of titration. In titration,…

Q: why is it necessary to use decarbonated cola?

A: To do titration of cola we need decarbonated cola.

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: how would you prepare 9 liters of a 50% dye solution beginning with a 60% stock dye solution?

A: Given :-  Initial concentration or concentration of stock solution = 60%  Final concentration or…

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

A:

Q: A solution of FESCN2+ has a concentration of 1.00 × 10-2M and an absorbance of 0.755. What is the…

A: Introduction: Beer's Lambert law shows the linear relationship between the concentration of the…

Q: If  niferex liquid solution provides 10 mg of elemental iron in 1 teasepoonful, how many mL of…

A: We need to calculate mL of solution required to provide 55 mg of elemental iron.

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: Graph data with Concentration on the x-axis and Absorbance on the y-axis. Find the line of best fit…

A: Lambert-Beer's law states that the absorbance of a solution is directly proportional to the…

Q: Pure aspirin has a melting point of 135-136 °C. Before the melting point was determined - if the…

A: Melting point is the temperature at which a substance changes from a solid to a liquid phase at…

Q: 3 Ways to separate Alcohol, water, diesel and blood and its step by step procedure

A: 1) Centrifugation- Blood is mostly water but the platelets and cells in blood can be separated by…

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: Table 1: Absorbance of X solution (575 nm)     Concentration (mg/ml)   Absorbance 0.025…

A: The relation between absorbance and concentration can be given as follows; A = e C l Where, A =…

Q: Give the standard deviation of these three molaritys.    0.0366 0.0373 0.0370

A: Standard deviation:  Standard deviation tell about the variability(error) in data set. If standard…

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: Which of the following best explains why a beam of light passing through a soap solution can be…

A:

Q: want to see the solution in a tablula form

A: we need to find the limiting reagent for a given reaction.

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: + Br₂ 1+ H₂O |+HI + H₂

A: Addition of hydrogen to unsaturated compound results into formation of saturated compound. Addition…

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

A:

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: . Your kidneys work by separating small ions in your blood from the larger protein molecules. Based…

A: The human kidneys are vital organs responsible for filtering the blood and removing waste products…

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: You are asked to identify three (3) solutions, one of which is linseed oil, another is coconut oil…

A: Detection of oils and fats  The presence of fat is proven if the sample is miscible with chloroform…

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?

A: Sodium chloride (salt ) dissolved well in water, but poorly in alcohol. When salt is added to the…

Q: Would you be able to check if water is hard by using a detergent?

A: Detergent is a long hydrocarbon chain of an aliphatic carboxylic acid having cleansing properties in…

Q: 1. What are the differences between preparing soap and detergent? 2. What will be the best thing to…

A:

Q: Why is a salt solution used in the preparation of soap

A: In this question we have to write the explanation why salt added in the solution during the…

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: Graph data with Concentration on the x-axis and Absorbance on the y-axis. Find the line of best fit…

A: A question based on analytical chemistry.. Using the given data, the line of best-fit of the graph…

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…

Alkynes

Alkynes are organic compounds that contain at least one triple bond between carbon-carbon atoms. They are a series of unsaturated compounds with a general molecular formula, CnH2n-2.