how you deduced the identity of your individual unknown.4. Select four reactions that were carried out during the laboratory period (ei-ther during the group work or while working on the individual unknown); onereaction should be selected in each of the following four categories: (a) acidbase reactions, (b) complex ion reactions, (c) gas forming reactions and (d) pre-cipitation reactions. For each reaction, attempt to write it as a balancedchemical reaction including physical states (solid 6), iquid (), gas (g) or aque-ous solution (aq)]. Balancing and phases will not be graded though.Additionally, the same reacton dan be usedim mulinkc categories.Note: It will save time if yOu work on the report items while you are doing theexperiment rather than waiting until the end of the period. For example, if youhave already created a flow diagram, you can reference the diagram in the re-sults section so that it does not need to be recopied. eral bad poems, obviously written by chemists gone mad.H2 SO (IM)Formed with cation of acid fame ifprecipitates anion, clement 56 to blameBa(NO,),March 17 has a color they say, that is the.same as this chemical's flame test display.NaHCO, (10%)Not as basic as you might think, but add anacid helps form a link.Abloedy mess yoU inight see, if vou pulthis together with iron(III).KSCNNaOHBASICally andd casy one to find,Fe(NO,),Roses are red and violets are hlie, red withlitmus and thiocvanate t0o,Nery emotional and complex, willhcopperquite blue, t0o stroig to hold ckse causesNIIOH (6 M) (aqueous NII,)Cu(NO,),Color is thhe kev and casy too see,个Next:

Answered: Image /qna-images/answer/c0045439-0807-44e9-a588-569c7ba27615.jpg

4. Select four reactions that were carried out during the laboratory period (ei- ther during the group work or while working on the individual unknown); one reaction should be selected in each of the following four categories: (a) acid base reactions, (b) complex ion reactions, (c) gas forming reactions and (d) pre- cipitation reactions. For each reaction, attempt to write it as a balanced chemical reaction including physical states [solid (s), liquid (t), gas (g) or aque ous solution (aq)]. Balancing and phases will not be graded though. Additionally, the same reacton.can be sed in multjplc.categories,

4. Select four reactions that were carried out during the laboratory period (ei- ther during the group work or while working on the individual unknown); one reaction should be selected in each of the following four categories: (a) acid base reactions, (b) complex ion reactions, (c) gas forming reactions and (d) pre- cipitation reactions. For each reaction, attempt to write it as a balanced chemical reaction including physical states [solid (s), liquid (t), gas (g) or aque ous solution (aq)]. Balancing and phases will not be graded though. Additionally, the same reacton.can be sed in multjplc.categories,

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Please answer subquestion (D).
Classify the reaction below as redox or non-redox 2KOH+H2SO4 --->K2SO4+2H2O
. In performing the lab reaction, the student made a mixture of 3 reaction components in a beaker. This was done by mixing 13.00 mL of 0.00250 M Fe³(aq) with 11.00 mL of 0.00250 M SCN (aq) and 6.00 ml. of deionized H₂O. Upon mixing these solutions (total volume of 30.00 mL), the final solution turned a deep. red color. The absorbance of this equilibrium mixture was measured and the concentration of Fe(SCN)2 was determined to be 3.00 x 10 M with the use of the Beer's Law constant (k). Determine the equilibrium constant (K) for the reaction from these values by completing the ICE table below. Be sure to report your final value of K at the bottom. (5 points) 3/15 Initial (mmol) Fe³+ Equilibrium (M) (aq) Fe (aq) 0.008 Change (mmol) -3X105 Equilibrium (mmol)X106 + SCN- (aq) Fet][SCN) 3X105 SCN (aq) = Fe(SCN)2- (aq) Fe(SCN)² (aq) 0 +3×105 X 0.02 3x05 7.7x1556 3 x 105 3.00 x 105 M 2+ Fe ² (aq) + SON (ag) → Fe (SCN) ²+ (aq) (fe+³) = 13X 0.002 = 0.008 30 SCN³) = 30X0.002 0.02 30 Fet ³ (aq) +…
5:15 1 ull 4G Discussion Assignment #6 O o o INFO DISCUSSION Discussion Assignment #6 Due:Wednesday, 14 Oct 2020, 3:00 PM In titration, one solution is added to another solution until a chemical reaction between the components in the solutions has run to completion. The solution being added is called the titrant, and we say that it solution. The completion of the reaction is usually shown by a change of color caused by a substance called an indicator. used titrate the other A typical titration proceeds in the following way. A specific volume of the solution to be titrated is poured into an Erlenmeyer flask. For example, 15.0 mL of a sulfuric acid solution of unknown concentration is added to a 250 mL Erlenmeyer flask. An indicator is then added to the flask, which changes color when the reaction is complete. The titrant in this example is potassium hydroxide, having a concentration of 0.121 M. The titrant is added to a buret. After slowly adding the titrant to the flask, the reaction…
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Write the balanced net ionic equation for the precipitation of nickel(II) carbonate from aqueous solution: Include states of matter in your answer. Submit Answer Retry Entire Group + 9 more group attempts remaining -> Previous
Balance the reaction between S²- and CIO3 to form S and CI in basic solution. When you have balanced the equation using the smallest integers possible, enter the coefficients of the species shown. Enter "1" if the coefficient is "1." S²- + CIO3- S + CI™ Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of (Enter 0 for neither.) How many electrons are transferred in this reaction? Submit Show Approach Show Tutor Steps
Precipitation of the sulfate ion with barium ion -Dissolution of barium phosphate solution with hydrochloric acid -Reaction of sodium phosphate solution with hydrochloric acid -Reaction of phosphoric acid with ammonium molybdate solution I need the net ionic equation and state of the reactions bellow: -Precipitation of the oxalate ion with calcium ion -Reaction of calcium axalate with sulfuric acid -Reaction of oxalic acid with acidic permanganate solution -Production of carbon dioxide from solid sodium carbonate and hydrochloric acid -Production of acetetic acid or ethyl acetate in sulfuric acid Thank you
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A student carried out an experiment trying to prepare tetra-methyl-ammonium tri-iodide.The student weighed 1.13 g tetra-methyl-ammonium iodide into a beaker containing 25 mL ethanol, and then added 1.57 g of iodine. The mixture was heated gently, whilst stirring, on a hotplate until tetra-methyl-ammonium iodide, a white powder, was completely dissolved. After the mixture was allowed to cool down to room temperature, the mixture was further cooled on ice. After filtration on a Buechner funnel, washing with diethyl ether and leaving it under vacuum suction for a couple of minutes, the student recovered the product and weighed it. The mass of the obtained tetra-methyl-ammonium triiodide was 1.62 g.What is the yield of the reaction in percent [%]? For the calculation, assume that the product is completely dry and pure, so there are no impurities like side-products, unreacted educts, or solvent residues.