needs. Hard water is caused by metal ions (salts) being dissolved in the ground water. We measure hardness in water in terms of CaCO3 as the Ca2+ ion is greater than the concentration of any other metal. Hard water does cause soap scum‚ clog pipes and clog boilers. Soap scum is formed when the calcium ion binds with the soap. This causes an insoluble compound that precipitates to form the scum you see. Soap actually softens hard water by removing the Ca2+ ions from the water. When hard water is heated
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DO form precipitates. cations ... Calcium‚ strontium and Barium form white precipitates of their oxalates with C2O4-2 ions. [PDF]24 Solubility Rules - Arapahoe High School arapahoe.littletonpublicschools.net/portals/7/.../solubilityruleslab.pdf How do we know which ionic compounds form precipitates and which do not? We can make a large number of mixings involving many different cations and an- ions. By observing the results ... Which anions generally do not form precipitates? Predicting Precipitation
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diagnosed and what complications might arise if Mr Jagger remains untreated? Renal calculi‚ also known as kidney stones‚ occur when glomerular filtrate passes through the nephron‚ where urine is concentrated with stone-forming salts (Bagga et Al.‚ 2013). Ions in the urine are capable of forming solid salts that can grow into stones (Bagga et Al.‚ 2013). Through the process of crystallization‚ a small nidus grows into a large stone when urine is supersaturated (Craft and
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copper(ions(that(are(then(reduced(to( metallic(copper.!!! !Zn(s)!+!Cu2+(aq)!→!Zn2+(aq)!+!Cu(s)!! ! ( ( STANDARD(REDUCTION(POTENTIALS(( •! Different)oxidants)and)reductions)have)varying)levels)of)“strength”)and)this) ultimately)determines)if)a)reaction)will)take)place.)) •! There)are)two(basic(rules(that)define)this)concept:)) 1.! Metals(s)(will(displace)(and)thus)react))metal(ions(above.)) !! E.g.)Cu(s))will)displace)Ag+(aq))) 2.! Halogens(g)(will(displace)(and)thus)react))halogen(ions(below.))
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A review of Guava (Psidium guajava) Anthony C. Dweck FLS FRSC FRSH Dweck Data Introduction In the next of our series on Far Eastern plant we look at Guava or Psidium guajava In folk medicine‚ extracts of roots‚ bark‚ and leaves are used to treat gastroenteritis‚ vomiting‚ diarrhoea‚ dysentery‚ wounds‚ ulcers‚ toothache‚ coughs‚ sore throat‚ inflamed gums‚ and a number of other conditions (Morton 1987). This plant seemed worthy of an in depth review. Family: Myrtaceae Common names: Common
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#8: Ionic Reactions Purpose: In this lab we will work with aqueous solutions of ionic substances and determine if they are soluble. If the solution appears milky than it is known as a precipitate reaction‚ meaning it is soluble‚ and that the ions separated and became surrounded by water. Precipitates in this experiment are electrically uncharged. To identify which compounds are soluble or insoluble we can check the chart in the textbook containing solubility rules and tables. The goal of
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azide 13863-88-2 AgNO3 silver nitrate 7761-88-8 Ag2O silver oxide 1301-96-8 AgONC silver fulminate 5610-59-3 AgSNC silver thiocyanate 14104-20-2 Ag2C2 silver acetylide 7659-31-6 Ag2CO3 silver(I) carbonate 534-16-7 Ag2C2O4 silver oxalate 533-51-7 Ag2Cl2 silver(II) dichloride 75763-82-5 Ag2CrO4 silver chromate 7784-01-2 Ag2Cr2O7 silver dichromate Ag2F silver subfluoride 1302-01-8 Ag2MoO4 silver molybdate 13765-74-7 Ag2O silver(I) oxide 20667-12-3 Ag2S silver sulfide
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Sodium Oxalate Sodium oxalate is the sodium or salt component of oxalic acid. Typically sodium oxalate is an odorless‚ white‚ and crystalline powder that decomposes at extremely high temperatures. Sodium oxalate is typically used as a reducing agent in most natural metabolic processes in plants and vegetables‚ and may also often be used as a primary standard for the standardization of potassium permanganate solutions. Like most other oxalates‚ sodium oxalates is highly toxic to humans
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The Fehling’s test was done to show the presence of carbohydrates. Two small test tubes were used and 5 mL of Fehling’s reagent was added to it. Five drops of 1% glucose was added to one test tube‚ the control. This tube was then boiled and if a brown-red precipitate was formed‚ it would indicate
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COMPLEXOMETRIC TITRATIONS COMPLEXOMETRIC TITRATIONS What is Complexometric Titration (CT)???? What What is a complex metal ion? A complex is a molecule or ion formed by the reaction of two or more ions or molecules capable of independent existence. What is COMPLEXATION????? Chemical reaction that takes place between the metal ion and a molecular or ionic entity (known as ligand). Also known as Chilometric titration‚ Chilometry‚ Chilatometric‚ EDTA titrations. It
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