(a) Why is an ethanol/water mixture used as the solvent rather than just water?  (b) Why does the soap precipitate when the reaction mixture is mixed with salt water?  (c) Did your soap become sudsy when you washed your glassware? Compare it to dish soap and body soap.

Q: Distillation is a physical process of separation of liquids that differ in what physical property?…

A: Distillation is a process of separating mixtures based on differences in their volatile in boiling…

Q: Supposed you are in a chemistry laboratory gave you a 500 ml Erlenmeyer flask containing 200 ml of…

A: As per the given data -  Mixture A contains NaCl solution whereas Mixture B contains the remaining…

Q: Chlor-alkali plants electrolyze NaCl to produce the commodity chemicals caustic soda and chlorine…

A:

Q: Write an equatition for the reaction of methanol with sodium?

A: Given,  The chemical equation between methanol react with sodium is:

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A:

Q: What mass of NaOHNaOH is needed to precipitate the Cd2+Cd2+ ions from 30.0 mLmL of 0.530 MM…

A:

Q: Write a chemical equation for the dissolution of sodium chloride in water.

A: Sodium chloride is a salt and it dissolves in water to give its corresponding ions.

Q: You want to analyze a cider that contains 5.6 g / L of lactic acid. If you have two NaOH solutions,…

A: The molar mass of lactic acid =90.08 g/mol Mass of lactic acid = 5.6 g/L

Q: b) (i) Draw the Lewis structure of methanol, CH3OH(ℓ).  (ii) Show with a simple diagram how methanol…

A: Covalent bonds are formed on sharing of electron between two atoms. A single covalent bond is formed…

Q: What is the number of equivalents of sodium in 0.806 moles of Na3PO4(aq)?

A: Number of equivalent is the multiplication.of Mole and nfactor. nfactor for salt is the charge on…

Q: List at least 5 limitations of using distillation as a method of purification

A: Distillation Process :* Distillation is the process of separating the substance or components from…

Q: If one mixes 50 cm3 of EtOH and 50 cm3 of H2O at room temperature; will the total volume of the…

A: Partial molar volume give the answer for this question. Water H2O Ethanol C2H5OH

Q: To determine the fluoride content in an aqueous and chloride-containing preparation of ammonium…

A:

Q: 1. How would each of the following procedural errors affect the value obtained for the molar volume…

A: Answer: When a metal reacts with acid, it produces H2 gas and metal salts. For example: Na+HCl= Nacl…

Q: Dissolve a spatula-tip of lead(II) nitrate in 5 mL tap water in a test tube. In another test tube,…

A: Precipitation reactions: These are the type of reactions when two soluble solutions after mixing…

Q: A student is given an antacid tablet that weighs 5.9200 g. The tablet is crushed and 4.8270 g of the…

A: Given : Volume of NaOH required to neutralise stomach acid after antacid = 11.7 mL And volume of…

Q: Imagine that you have 4 buckets full of dark, muddy water. One bucket is frozen, one bucket is…

A: The bucket which is most likely to become lighter in color is

Q: The sample contains CaCl2 and its concentration was 0.03M. Calculate grams of CaCl2 present in 100…

A:

Q: The substance to be analyzed – is white, highly soluble in water salt. Interaction with concentrated…

A: Which chemical compound matches with the given properties has to be identified.

Q: 31.  10.0 mL. of concentrated of H3PO4(aq) is diluted to the final volume of 250.0 mL.  Then 15.0…

A: Given that : The initial volume of H3PO4 = 10.0 mL The final volume of H3PO4 = 250.0 mL Molarity of…

Q: A concentration of carbon monoxide of 4000  ppm  (0.400 %  by mass) in air is lethal in about half…

A: Given: Volume of car = 2.9 m3. Since 1 m3 = 1000 L Hence volume of car in L = 2900 L

Q: You have a flask weighing 121.214 g. To this flask, you added 25.00 mL KCl(aq) solution. You weigh…

A: molality is a method of expressing concentration of the solution. it is defined as number of moles…

Q: 31.  10.0 mL. of concentrated of H3PO4(aq) is diluted to the final volume of 250.0 mL.  Then 15.0…

A:

Q: Blue Color terdrops why did water droplets form at the mouth of the test tube when heated? When the…

A: Consider the test tube with some water. When this test tube is placed in hot water or heated, the…

Q: This question has two parts: A student is trying to prepare 500. mL of 6.0 M sodium hydroxide, NaOH,…

A: molarity =w/M ×1000/v in ml W=weight of solute M=molar mass of solute   NaoH molar mass 40 g /mol

Q: Write the balanced equation for the neutralization of H2SO4 and LiOH. And Write the formula for the…

A: Acid reacts with base to form salt and water. The given acid is H2SO4 and base is LiOH.

Q: A student carries out the following experiments and records the following observations.  1.  A few…

A: It is clear from the experiment that KOH(aq) when combines with Cu(NO3)2(aq), it gives blue…

Q: Why does it take a long time for a polymer (PVA) to dissolve in water when a similar mass of sugar…

A: A polymer will take long time to dissolve in water but compounds such as sugar (sucrose) or NaCl…

Q: Chlor-alkali plants electrolyze Nacl to produce the commodity chemicals caustic soda and chlorine…

A: The effluent can contain upto 2.5×10-9 mol/L Hg Weight of Mercury= 1.42g

Q: Use your knowledge about solubility rules and reactions to write (1) a balanced chemical  equation…

A: Mg(NO3)2(aq) + SrCl2(aq) →  The given reactants are Magnesium nitrate and Strontium chloride. (1) A…

Q: 5. A mystery liquid with a density of 1.22 g/mL has a boiling point of 132.5 °C. (a) A sample of…

A:

Q: A 45.40% ferric oxide needed 0.7519 gram of an impure sample of iron ore. The analyte then required…

A:

Q: Imagine a small amount of each compound in the table below is dissolved in water. Pick the sketch…

A: CHCl3 (Chloroform): Chloroform consists of one carbon atom, one hydrogen atom, and three chlorine…

Q: A student is given an antacid tablet that weighs 5.9320 g. The tablet is crushed and 4.9780 g of the…

A: Given that 29 mL of the solution neutralizes 25 mL of the original solution.  1 mL of the NaOH will…

Q: Suppose that a volume of 5.0 cm³ of acetic anhydride (density = 1.08 g·cm⁻³, molar mass = 102.087…

A:

Q: Monique has a pot that contains 7 liters of brine (salt water) at a concentration of 110 g/L. She…

A: The number of moles of solute on per liter of solution is known as concentration.

Q: Now the student wants to test the decanoate from question 5 for the presence of the remaining…

A: Answer :- Now the student in the G1-3 step,  adds 6M NH3 to the precipitate, stirs and centrifuges…

Q: E of acetylsalicylic acid in the tablets.

A:

Q: 7. A student weighs out exactly 1.562 grams of p-aminophenol and exactly 40 mL of water. After…

A: Provided amount of p-aminophenol=1.562g For the provided reaction Water act as a solvent and HCl act…

Q: A hydrate of nickel(II) chloride (NiCl2·XH2O) decomposes to produce 29.5% water & 70.5% AC.…

A: Answer: This is the question based on the stoichiometry of the compound, where each type of species…

Q: For each of the following reactions, suggest two soluble ionic compounds that, when mixed together…

A: When two soluble ionic compounds are mixed together in water and give one precipitate known as…

Q: A white powder is added while baking breads and cakes to make them soft and fluffy. Write the name…

A: A mixture of weak acid and carbonate or bicarbonate forms a chemical powder called baking powder.…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.