A student was given an unknown solid that gave the following test results: A portion of the solution of unknown emitted bubbles of a colorless, odorless gas when hydrochloric acid solution was added. Another portion of the solution gave a blood-red colored solution with potassium thiocyanate solution.

Q: A river water was tested to determine the presence of group 1 cation. A white precipitate was…

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Q: Explain, with an equation, how the Group II ions can be precipitated as sulfides leaving the Group…

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Q: A 1.047 g sample of canned tuna was analyzed by the Kjeldahl method; 24.61 mL of 0.1180 M HCl were…

A: Given data contains, Mass of canned tuna is 1.047 g. Volume of HCl is 24.61 mL. Molarity of HCl is…

Q: Write a balanced chemical equation based on the following description: aqueous iridium(III) bromide…

A: Balanced Equation Based on Description in the Question

Q: What are the oxidation numbers of the nitrogen atoms in nitric acid

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Q: scandium(III) zinc (II) hydrogen carbonate cyanide lead (II) nitrate is mixed with a solution of…

A: A balanced chemical equation occurs when the number of the atoms involved in the reactants side is…

Q: Give one example each of(a) Thermal decomposition(b) Electrolytic decomposition(c) Photo…

A: (a) Thermal decomposition Example: Copper carbonate → copper oxide + carbon dioxide.

Q: A 0.4334 g sample of canned tuna was analyzed by the Kjeldahl method; 24.61 mL of 0.1180 M HCl were…

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Q: 4. What is the chemical composition of magnesium precipitate which is crystalline in appearance? *…

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Q: 21. The components of a blank used in the assay of a substance are, except: a. Indicator c. Analyte…

A: Requirement from student:  Three objective question and answers

Q: When hydrogen sulfide gas is bubbled through a solution of lead (II) nitrate a black precipitate of…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

Q: 1. Make a complete schematic diagram for the precipitation, separation, and identification of Group…

A: Since you have asked multiple questions, we will answer the first three for you. To get the…

Q: 185 mL of 0.355 M NaCl is added to a 0.500 L volumetric flask and the flask is filled with water.…

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Q: Give the importance of solubility in the practice of pharmacy

A: Solubility is the maximum amount of Substance or Solute that can dissolved in given fixed amount of…

Q: Koekemoor, a technician at Mahlakaneng laboratory, is required to remove chromium from chromium…

A: The question is based on the concept of reaction stoichiometry. We have to calculate concentration…

Q: Write the balanced NET ionic equation for the reaction when chromium(III) bromide and sodium…

A: Net ionic equation is

Q: How many grams of nickel (II) phosphate (366.02 g/mol) will precipitate if excess sodium phosphate…

A: The balanced equation for the reaction is given below.

Q: The solution from which a precipitate was formed. a. Mother liqour b. Titrant c. Saturated solution…

A: Mother liquor is defined as the solution which is left out after a certain component has been…

Q: Reactivity with acid is a chemical property common to most metals. Which of the following metals…

A: The reactivity of metal with HCl is very common. The general reaction can be given as: Metal…

Q: Hydrogen fluoride gas is a polar covalent molecular compound that dissolves in water to form a weak…

A: 1) Hydrogen fluoride gas is a polar covalent molecule. when put in water it get dissolved but only…

Q: Analyze the table of some common inorganic precipitating agents and answer the following questions:…

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Q: A student adds silver nitrate solution to hydrochloric acid solution and obtains a white…

A: Hi there! Thank you for the question, but as per our guidelines we can solve only one question at a…

Q: You will analyze the residue left in the "container" in order to experimentally verify its…

A: Solution: This is the analysis of anions.

Q: A student mixes an aqueous solution of ammonium chromate and an aqueous solution of lead (II)…

A: Balanced chemical reaction is

Q: A colourless and a pungent smelling gas which easily liquifies to a colourless liquid and freezes to…

A: The equation in which the number o atoms on both reactant as well product sides are equal is termed…

Q: What is the results of mixing calcium nitrate with sodium carbonate? Group of answer choices A…

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Q: After studying the separation scheme for Group III cations and using your background knowledge on…

A: It is a method of identifying and classifying elements into a group from a solution provided through…

Q: when aqueous sodium hydroxide is added to aqueous aluminium sulphate,a white precipitate is formed

A: Chemical reaction:The following reaction will occur when aqueous sodium hydroxide is added to…

Q: Write the balanced dissociation equation for solid gold(III) nitrate in aqueous solution. If it does…

A: The reactant given is solid gold (III) nitrate i.e Au(NO3)3 (s).

Q: What is the net ionic form of the reaction when zinc sulfate combines with calcium nitrate?

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Q: Using water, how could you distinguish between the white solids KCl and PbCl2

A: Salts are formed by the neutralization reaction of acid and base. These salts form electrolytes when…

Q: I. Complete the table below by providing what is asked. Provide chemical name and formula of the…

A: Group I anions include chloride (Cl-), bromide (Br-), iodide (I-), ferrocyanide [Fe(CN)6]4- and…

Q: 0) Silver chloride is soluble in ammonia because the silver ion is reduced True False into its…

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Q: ammonia have what key substance involved in the reaction?

A: When NH3 React with water then it's will form NH4OH because NH3 is a base it's will abstracted H(+)…

Q: When you mix solutions of lead (II) nitrate and potassium iodide,(i) What is the colour of the…

A: The reaction that takes place when the solution of lead (II) nitrate and potassium iodide mixes is:…

Q: Test Tube 1 Test Tube 2 (Before) Aqueous (After) + 10 drops AGNO3 (Before) Aqueous (After) + 10…

A: Based on the observations from the picture given in the question, the answers to the given questions…

Q: Write all the reactions involved in the Mohr's method, if an unknown solution containing chloride…

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Q: The color of the precipitate formed when phosphate ion reacts with reagent added in the test for…

A: The test for presence of phosphate ion is done by the use of reagent ammonium heptamolybdate.

Q: In titration, one solution is added to another solution until a chemical reaction between the…

A: The balanced chemical equation for the reaction between the given acid and base is shown below.…

Q: CaCin The calcium carbonate sample is heated in the oven for 30 minutes, cooled, and then weighed.…

A: The calcium carbonate (CaCO3) sample is heated in the oven for 30 minutes, cooled, and then weighed,…

Q: Write the reaction equation for the test for carbon dioxide with calcium hydroxide solution. Show…

A: When Carbon dioxide (CO2 (g)) reacts with Calcium hydroxide solution ((Ca(OH)2 (aq), Lime water)…

Q: What is the balanced chemical equation of adding 2 Ml of distilled water and 4 drops of bromothymol…

A: When Mg atom is burned in presence of oxygen,  then MgO is formed . This MgO reacts with bromothymol…

Q: In an analysis of vinegar by titration, a student placed the vinegar in the buret and a measured…

A: Please find your solution below : In acidic solutions like vinegar, phenolphthalein is colourless…

Q: A yellow solid is either lead(II) chromate or sodium chromate. What would you do to tell which…

A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…

Q: A precipitate that could be formed from soft acids is silver chloride. True or false?

A: Given statement is :  A precipitate that could be formed from soft acids is silver chloride  Whether…

Q: The test for lead (II) ion is determined of potassium chromate solution to form a yellow precipitate…

A: It is for the confirmation of lead(ll) ion. Following are steps- First use the iodide solution. Add…

Q: the balanced equation for Lead Nitrate & Ammonium Sulfate. What is the white precipitate that forms?

A: The reactants given are  Lead Nitrate = Pb(NO3)2  Ammonium Sulfate = Al2(SO4)3