0
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?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
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 is observe when aqueous ammonia is added in excess to a silver chloride solution?
The white precipitate of silver chloride will dissolve when aqueous ammonia is added.
Why do you use iodine solution during the preparation of slide of onion peel?
So that you can observe different characteristics of the cell clearer such as the nucleus, vacuoles or other membrane bound organelles.
Which soil properties can you observe?
You can observe if the soil is clay, sand, or full of organic matter by the color. You can observe if the soil is compacted by how difficult it is to dig. You can observe if it has worms which is good because worms provide aeration and fertilizer. You can observe how wet the soil is.
What changes can you observe in your chosen area?
i observe in my chosen area it is the rural area in court add me in fb anoragape@y.c xD
When silver nitrate solution was added to your product what did you observe?
If chloride is present silver chloride with get precipitated..
What will be the observations when Zinc nitrate solution is added to Lead nitrate solution?
When zinc nitrate solution is added to lead nitrate solution you willÊapparently observe a black solid being formed. All of the research yielded facts from adding solid metal to either zinc or lead.
What do you expect to observe when a solution of potassium nitrate saturated at 343 k or 70 c is cooled to room temprature?
Precipitation of a solid.
How do you identify between aluminum nitrate and zinc nitrate when they are both in solution?
Zinc is most reactive of the three. So if you put a piece of zinc metal to the three solution you will observe, In the Zinc nitrate solution there is no reaction while others have. As zinc is most reactive of three, in will displace the respective metals out of their solution. If the zinc is coated with reddish covering, it is Copper nitrate. If is coated with silvery needles, the solution is Tin nitrate.Zn + Cu(NO3)2 ----> Cu + Zn(NO3)2Zn + Sn(NO3)2 ----> Sn + Zn(NO3)2Zn + Zn(NO3)2 ----> [No reaction]
Add a drop of iodine to both a distilled water test tube and to the test tube containing the starch solution in the test tube What do you observe?
The starch solution will turn black, while the distilled water will remain brown, the same colour as the iodine. This is actually because water, normally used as a control, does not contain any starch and as we know, the iodine test is highly specific for the presence of starch hence no colour change other than iodine dissolving in water to form an iodine solution contrary to starch which we know complexes with iodine, to form starch-iodine complex forming the blue-black colour observed
What would one observe when sodium hydroxide is added to ammonium nitrate and heated?
sugar
IronIII reacts with thiocyanate to form a red complex formula. what change we will observe if we add a solution containing ironIII to this mixture?
According to Le Chatelier principle, adding more reactants will force equilibrium to favor products. The solution will become more red.
Why did you observe a small current flow in distilled water?
There should be exactly no free electron flow (current) in distilled water because distilled water has zero conductivity. The charges will quickly be neutralised by spontaneous molecule contact. As distilled water is carbonated gradually when exposed to the air, it is electrically conductive.
What is making conclusions based on patterns you observe?
solution
What do you observe when calcium carbonate reacts with dilute nitric acid?
calcium nitrate , carbon dioxide and water are formed...
What color changes did you observe when you added Benedict's solution?
nce
What color would you observe in a tube containing a pondweed and hydrogencarbonate indicator solution left in bright light after five hours?
Luckily we both have the same assignment but I'll help you out here :P, The solution would turn yellow since oxygen raises the pH level of the solution and the oxygen is obviously produced via photosynthesis though I am not sure whether it can be performed in the solution but yeah :) hope that helps :)
