0
What else can I help you with?
Add a drop of silver nitrate to both a distilled water test tube and to the test tube containing the salt solution in the test tube. What do you observe?
Should be a white precipitate. Indicative of the presence of either Na or Mg. Wrong again people. Silver Nitrate is used to test for the presence of chloride ions. Such as those in your salt a.k.a sodium chloride and yes adding silver nitrate to your salt solution will create a white precipitate.
What is Mercuric nitrate method for chloride determination in water?
Reagents and Indicators R-13-1Analytical Methods of the Member Companies of theCorn Refiners Association, Inc.Accepted 4-15-86MERCURIC NITRATE SOLUTIONPREPARATION0.02N Mercuric Nitrate Solution: For chloride determination. Dissolve 3.3 g ofreagent grade mercuric nitrate (Hg(NO3)2) in about 100 mL of purified watercontaining 0.25 mL of concentrated nitric acid (70% HNO3, sp g 1.42). Dilute to1 L with purified water, and mix.STANDARDIZATIONDry a quantity of analytical grade sodium chloride (NaCl) 30 minutes at 105°C;cool in desiccator. Dissolve 0.8241 g of dry sodium chloride in purified water,dilute to 1 L volume, and mix.Pipet 5.00 mL of the above sodium chloride solution, containing 2.5 mg chloride,into each of three 250 mL glass stoppered Erlenmeyer flasks. Add 85 mL ofpurified water, 10 mL of diphenylcarbazone indicator solution, 1 mL of 30%hydrogen peroxide solution, and 1.0 mL of 0.5N nitric acid solution (Note 1) toeach of the flasks. Stopper flasks and swirl contents. Prepare a reagent blank in a250 mL Erlenmeyer flask containing 90 mL of purified water, 10 mL ofdiphenylcarbazone indicator solution, 1 mL of 30% hydrogen peroxide solution,and 1.0 mL of 0.5N nitric acid solution; mix. Titrate the blank with mercuricnitrate solution to the purple indicator end point. Color development near the endpoint is slow, and as much as 30 seconds should be allowed between titrant dropsto facilitate full indicator color development (Note 2). Titrate the three standardsin the same manner to the same color end point. Observe and record the titers.Calculate average normality.CALCULATION(mL Hg(NO ) Titer - Blank)×35.452.5mgNormality =3 2Reagents and Indicators R-13-2MERCURIC NITRATE SOLUTION⎯ continuedNOTES AND PRECAUTIONS1. Treatment with hydrogen peroxide destroys interfering sulfites by oxidationto sulfates, and the nitric acid addition adjusts acidity to the proper level(pH about 2.5).2. Care should be exercised as the end point is approached, and it is expedientto observe the reaction mixture over a white surface. End point detection isfacilitated by running the blank first, and then titrating the standards tomatch the color of the blank.
What would you see if a piece of magnesium ribbon reacts with dilute hydrocholric acid?
When a piece of magnesium ribbon reacts with dilute hydrochloric acid, you would observe effervescence (bubbling) as hydrogen gas is released. The magnesium ribbon would dissolve in the acid, producing magnesium chloride solution. The solution may also become warm due to the exothermic nature of the reaction.
How can you see copper sulphate dissolve in water?
Take some copper sulfate solid and add it to a beaker of water. Stir and you will see that the solid slowly disappears to form a blue solution. Copper sulfate has dissolved and is therefore soluble in water. Anhydrous copper sulfate is a white solid while hydrated copper sultate (CuSO4.5H2O) is blue.
What evidence did you observe that would lead you to believe that the residue was potassium chloride?
The evidence that would lead you to believe that a residue was potassium chloride is it's white crystalline structure. When potassium chloride is mixed with water and the water evaporates, it leaves behind small potassium chloride crystals.
What would be observed when a fresh precipitate of silver chloride is treated with excess ammonia solution?
When you treat silver chloride with excess ammonia solution, Diamine silver (I) chloride is formed . The reaction involved is- AgCl + NH(3) --->Ag( (NH(3)) 2)(+) + Cl(-).What you will observe is that AgCl is insoluble, but after adding ammonia it becomes soluble because of above reaction.
What would be observed from an aqueous mixture of magnesium chloride and sodium hydroxide?
You would observe precipitation of magnesium hydroxide.
What would you expect to observe if a sample of ammonia gas collected were bubbled into aqueous copper ii sulphate until no further change took place?
If a sample of ammonia gas were bubbled into aqueous copper (II) sulfate until no further change took place, you would observe a deep blue color forming due to the formation of a complex copper-ammonia compound. This complex, [Cu(NH3)4(H2O)2]2+, is responsible for the color change.
When silver nitrate solution was added to your product what did you observe?
If chloride is present silver chloride with get precipitated..
What color do you observe for the solution of hydrated copper(II) chloride in water?
The solution color of cupric oxide is blue to green.
What colour do you observe for the solution of hydrated copper chloride in water?
The dihydrated salt is blue-green.
What is the color of sodium in aqueous?
The sodium ion, Na+, has no color. You can observe this easily by dissolving table salt (NaCl) in water. The water does not change color.
What would you observe when blue litmus is introduced into a solution of ferric chloride?
Blue litmus paper turning red indicates that the solution of ferric chloride is acidic. This is because ferric chloride is a strong acid, which will donate protons to the water molecules, increasing the concentration of H+ ions in the solution and lowering the pH.
What do you observe when the mouth of the bottle of hydrochloric acid and a bottle of ammonia are brought together?
You might see the smokey 'fume' of ammonium chloride solid particles formed by reaction of escaping ammonia and hydrogen chloride gas, at best seen when solutions are rather concentrated.NH3(g) + HCl(g) --> NH4Cl(s)
What do you observe when ethyne is passed through ammoniacal cuprous chloride solution?
When ethyne is passed through ammoniacal cuprous chloride solution, the blue color of the cuprous chloride solution fades as the ethyne reduces cuprous chloride to copper, forming reddish-brown copper. This reaction is a test for unsaturation in organic compounds.
What do you observe when you combine baking soda solution and calcium chloride solution?
When baking soda solution and calcium chloride solution are combined, a white precipitate of calcium carbonate forms due to a chemical reaction between the two compounds. This reaction also releases carbon dioxide gas, which may cause bubbling or fizzing in the solution.
What two visible evidence of reaction will you see when you acidify the NaHCO3 extract with HCl solution?
In the reaction between sodium bicarbonate and hydrochloric acid, one result of the reaction will be carbon dioxide bubbling out of solution. Also sodium chloride can be viewed falling in the solution.
