aluminum potassium sulfate salt in a sample of impure scrap aluminum from a common beverage can. The sample will be passed through a filter paper using a funnel‚ after being boiled on a hot plate in a fume hood and dissolved in a solution of potassium hydroxide to remove the impurities. By adding an excess of sulfuric acid and cooling the solution in an ice bath‚ the technique of vacuum filtration using a Buchner funnel will be employed‚ crystals of the hydrated aluminum potassium sulfate salt will yield
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materials using cheesecloth. A clean‚ cotton cloth was then subjected to a series of procedures from pretreatment and mordanting down to dyeing with the rnangosteen extract. Alum and copper sulfate were used as mordants. Results revealed that the mangosteen extract was stabilized by both mordants‚ but copper sulfate was a better fixing agent than alum‚ because it intensified the color of
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the experiment is to analyze alum‚ AlK( SO4 )2 . 12 H2 O‚ by three techniques in order to verify its identity. The following properties will be determined namely‚ melting point‚ mole ratio of hydrated water to anhydrous alum‚ and percent of sulfate ion contained in the compound. Each of these properties will be compared to the literature or established values for alum. In this experiment‚ the first step ( Part 1 ) is to find the melting point of the compound and compare it to the published
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Iron powder will react with cupric sulfate in a onetoone ratio (1 mole to 1 mole). The students will also be able to more easily visualize the size of a mole of iron and copper. The result obtained in this lab usually have less than a one percent error. Fe(s) + CuSO4 (aq) > FeSO4(aq) + Cu(s) Iron powder cupric sulfate ferrous sulfate copper In the reaction‚ iron will be the limiting reagent; it will be completely used up in the reaction. Cupric sulfate will be in excess; not all of it will be used up in the reaction
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GRAVIMETRIC DETERMINATION OF SULFATE Purpose You will be given a solid powder‚ which has been dried to constant mass. The sample is water soluble. The purpose of this experiment is to determine the concentration of sulfate in your solid sample using gravimetric analysis. Background Gravimetric Analysis The goal of most quantitative chemical analysis measurements is to estimate the relative abundance of an analyte in a chemical sample. For solid and liquid samples‚ a very common expression
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materials using cheesecloth. A clean‚ cotton cloth was then subjected to a series of procedures from pretreatment and mordanting down to dyeing with the rnangosteen extract. Alum and copper sulfate were used as mordants. Results revealed that the mangosteen extract was stabilized by both mordants‚ but copper sulfate was a better fixing agent than alum‚ because it intensified the color of the extract. It can be concluded that the mangosteen husk extract can effectively be used as an alternative‚ environment-friendly
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THE GRAVIMETRIC DETERMINATION OF SULFATE Learning Goals. 1. To determine the amount of Sulfate in an Unknown sulphate sample. 2. To perform and develop skills in precipitation Gravimetric method of quantitative analysis. DISCUSSION: Gravimetric analysis is one of the oldest analytical techniques and for this reason is referred to as a "classical method." Gravimetric procedures are usually very accurate‚ but more tedious than other methods. The only major equipment needed
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Unit 3 assessment O1 Analysis of fertiliser-an extended experimental investigation Background: In this investigation you will analyse the composition of a lawn fertiliser‚ or ‘lawn food’. You may use external sources to help you complete the this section. Q1. Why is each of the elements Nitrogen‚ Phosphorus‚ sulfur and iron included in lawn food? ______________________________________________________________________________________________________________________________
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nitric acid is given by: 31.50 g/mol 17.03 g/mol 63.01 g/mol 126.02 g/mol 4 - Sodium oxide has the formula: Na2O Na2O2 NaO2 Na4O2 5 - The correct name for (NH4)2SO4 is: Ammonium bisulfate Ammonium hydrogen sulfate Ammonium sulfate Ammonium (I) sulfate 6 - If the density of a substance is 4.070 g/mL‚ what is the volume (expressed in scientific notation with appropriate number of significant figures) in milliliters of a piece of this substance with a mass of 7.73 g? 31.46
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following reasons: ○ It has a pH value of 12 and burning it produces a bluegreen color. ○ It produced bubbles when mixed with Zn‚ Al and Fe which are all more reactive than copper. ● (2) I believe this solution to be Sodium Sulfate because of the following reasons: ○ Blah blah blah ○ Blah blah ○ blah blahhh Unknown 1 ● NaCl ○ ○ ○ ○ ○ Unknown 2 yellow flame 7 ph precip with agno3 therefore one of the halides (cl‚ br‚ i) white solid from evaporation conductive
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