When creating Alum KAl(SO4)2.H2O: Why was 30 mL of ethanol added to a filtered solution of aluminum foil and 50 mL of 1.5 M KOH after the ethanol had been on ice for 15 minutes?

Q: Explain how EDTA interacts with a metal? Why do we use it as a titrating agent? Why is EDTA a common…

A: Answer- EDTA is a versatile chelating agent. It can form four or six bond with metal ion and it form…

Q: 1. Write a balanced chemical reaction for the precipitation of Fe (after the addition of ammonium…

A: 1. 6NH4NO3 + Fe2O3 ----> 3O(NH4)2 +                                                         6NO3…

Q: of 15.00 x 10 mA flows for exactly two hours, calculate the number of tin atoms in the metal…

A: Using Faraday's law of electrolysis  Mass = Mit/nF Where, M = molar mass           i = current =…

Q: Baking powder contains sodium bicarbonate plus an acidic salt like sodium acid tartrate or calcium…

A: Please find your solution below : Baking powder is a mixture of sodium bicarbonate (NaHCO3), other…

Q: 2) What is the role of EDTA in determining the hardness of a water sample along with the chemical…

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Q: 5. Detenmine the moles and number of grams of calcium carbonate needed to make the following…

A: Given (a)25.0ml of 0.997M CaCO3 (b) 1.25L of 3.42M CaCO3 To find moles and mass of CaCO3

Q: 1. Calculate the molarity of a solution prepared by dissolving 11.5 g of solid NaOH in enogh water…

A: Molarity(M) is the moles of solute per unit volume of the solution in litres. It's unit is mol/L…

Q: Where does 179.8 Fe(NO3)2 came from?

A: to convert the no of moles into mass ,use formula,no of moles of substance =molar mass of substance…

Q: The first step in the preparation of magnesium metal is the precipitation of Mg(OH)2 from sea water…

A: At certain temperature, the mixing property of components is determined by their solubility product…

Q: What percentage of a 1.5g sample of SrF2 could dissolve in 10.9 liters of water?

A: Percentage dissolved amount of a sparingly soluble salt can be calculated by knowing its molar…

Q: What is the concentration of F− ions in a solution prepared by saturating a 0.0045 M Ba(NO3)2…

A: The concentration of Ba2+ is 0.0045 M. The dissociation of BaF2 is given below. An equilibrium…

Q: what is the pH of bleach with [H3O+]=4.2*10-12 M

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Q: (a) Hydrolysis of XeF6 is not regarded as a redox reaction. Why?(b) Write a chemical equation to…

A: Redox reaction takes place when transfer of electrons is seen between reactant species involved in…

Q: 1. What color of precipitate is produced when Na₂O₂ oxidizes Co(OH)₂? 2. What is the product of the…

A: As per our company guidelines we are supposed to answer only three questions.kindly repost remaining…

Q: Calculate the pH of a 0.65 M solution of aqueous bromous acid (HBrO2, Ka = 1.2 x 10-5).

A: Dissociation constant of acid (Ka) - In dissociation reaction of acid, ratio of concentration of…

Q: how do i write the net ionic equation for the formation of Ag2SO4(s)

A: The product of the reaction is shown below,            Ag2SO4

Q: You have been contracted to determine how different salts affect the pH of water. Which of the…

A: Salts are basically formed when an acid reacts with a base. strong acid+strong base→salt+water To…

Q: 2.0kg H20. 54. In an accident, a solution containing 2.5 kg of nitric acid was spilled. Two…

A:

Q: The Yucca Mountain repository in Nevada, which is intended for the long-term storage of nuclear…

A: Concept introduction- Solubility product (Ksp)- It is equilibrium constant for a chemical reaction…

Q: Can you compare the solubility of Co2 in water compared with saturated NaCl solution?

A: solubility of Co2 in NaCl solution is less than in water increases with the temperature and…

Q: What is the pH of a 0.237 solution of sodium hypobromite (NaOBr)? The Ka of hypobromous acid is 2.24…

A: Ka for HBrO , Ka = 2.24 × 10-9  Kb = 10-14 / 2.24 × 10-9 = 4.46 × 10-6  NaOBr ---> Na+ + OBr-

Q: The calcium supplements taken by many women are composed primarily of powedered calcium carbonate,…

A: Some compounds or base are helpful in neutralizing excess HCl being produced in stomach. These…

Q: 1. The chemical reaction for biocalcification is: Ca2+ + 2 HCO?=CO2 + CaCO3 + H2O Using this…

A: Biocalcification is related to the accumulation of calcium carbonate to form hard tissue. Oceanic…

Q: how precipitation helps in extracting magnesium from sea water

A: Magnesium chloride is naturally extracted by seawater by precipitating it to magnesium hydroxide.…

Q: Write a net ionic equation for C2O42- and Ca2+

A: The net ionic equation for C2O42- and Ca2+ is as follows,

Q: What is the pH of a 0.473 solution of sodium hypobromite (NaOBr)? The Ka of hypobromous acid is 2.24…

A:

Q: b) A solution of chlorine in water is used as a disinfectant. The equation below indicates the…

A: Rxn of chlorine with water forms hypochlorous acid. This reaction is termed as hydrolysis rxn. Cl2 +…

Q: A stock solution containing Mn2+ ions was prepared by dissolving 1.635 g pure manganese metal in…

A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

Q: A sample of an industrial waste water is analyzed and found to contain 48.6 ppb Ni2+. How many grams…

A:

Q: Tetraphosphorus decaoxide (P₄O₁₀) is made from phos-phate rock and used as a drying agent in the…

A: The answer for part (a) is given below. Kindly repost the other part as separate question

Q: It was found that 25 ml of a sodium hydroxide solution, which per liter contains 4 g of commercial…

A: Given data contains, Volume of sodium hydroxide is 25mL. Mass of commercial caustic soda is 4g.…

Q: Hydrochloric acid (HCl) was added to potassium iodate crystals (KIO₃) which had previously been…

A: Here Aluminium also takes part in the reaction.  This is an oxidation- reduction reaction Here KIO3…

Q: What is the role of zinc metal in the extraction of silver?

A: A separation method involving the separation of a material from a matrix is called as extraction…

Q: Roles of carbon IV oxide in soft drinks

A: Carbon (IV) oxide is a chemical compound with the formula CO2. It is commonly known as carbon…

Q: How many grams of calcium phosphate can be produced from the reaction of 2.50 L of 0.250 M Calcium…

A: Given :-  3CaCl2 + 2H3PO4 → Ca3(PO4)2 + 6HCl  Molarity of CaCl2 solution = 0.250 M  Volume of…

Q: What is the weight (gram) required to prepare 1.2 M solution of 0.75 L from the solid compound of…

A: A question based on molarity concept, which is to be accomplished.

Q: What is the molarity of a solution prepared by dissolving 20g of kMnO4 in enough water to make a…

A:

Q: 1. Write and balance chemical reactions that happen when Pt is dissolved using aqua regia forming…

A: The chemical reaction for the formation of H2PtCl6 is given below

Q: 6. What is the pH of bleach with [H3O+] = 4.2 × 10–12 M?

A: H3O+=4.2x10-12 MpH=-log H3O+    =-log 4.2x10-12

Q: B-2: Decomposition of Sodium Bicarbonate a) Observation on filtering the Ca(OH), solution: b)…

A: a. On heating sodium bicarbonateNaHCO3 reacts with calcium hydroxideCaOH2 to form calcium carbonate…

Q: 8) Why are some elements, such as Zn or Si, greatly enriched in deep waters of the North Pacific…

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Q: 1. What is the concentration of Ca2* in ppm if [Ca2*] is 3.85 x 10$ M? 2. Why is it important to…

A: Concept:  1. Molarity to ppm convertion:   If you take molarity (with units mol/L), and multiply it…

Q: (1) Describe how adding a solution of KOH to the original sulfide precipitate results in the…

A: Sn4+ hydroxide, [Sn(OH)4] is extremely insoluble, just as the sulfide is (Ksp = 1.0 x10-57 and 1.0…

Q: 4. Why do silver salts dissolve readily in 3 M HNO3? Why is the fresh chlorine water critical to…

A: Soluble silver salts dissolve in H2O if it is either neutral pH or acidic. But, if the water is…

Q: Following sodium fusion and fracture of the test tube into 15 mL of deionized water (in a 50 mL…

A: Whenever we perform the sodium fusion test for element detection, we prepare sodium fusion extract .…

Q: Great Lakes Chemical Company produces bromine, Br2, from bromide salts such as NaBr, in Arkansas…

A: A balanced reaction is the reaction where the number of atoms of each element is same on both…

Q: Give’ TWO large scale uses each, of sulphuric acid and nitric acid

A: Sulphuric acid has the formula H2SO4. It is commonly used chemical in industry which is prepared by…

Q: During bad storage of cement the alkalis in the cement react with CO2 to form alkali carbonates,…

A: A cement is a substance that is used for construction that sets, hardens, and adheres to other…

Q: Calculate the mass of Na2S2O3•5H2O needed to prepare a 1.00-liter solution of 0.0700 M…

A: