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- 2MnO4−+5H2C2O4+6H+⟶2Mn2++10CO2+8H2O Reaction : Permanganate Ion Reduced by Oxalic Acid If you increase the concentration of oxalic acid in an experiment, what will the molecules and ions be doing? (Simply trying to determine how it will be effected because I don't understand what it would be doing. In the experiment I did, it took longer to notice any changes occur in the color of the test I was doing. )What is the equilibrium expression for: Fe3O4(s) + 4H2(g) <=> 3Fe(s) + 4H2O(g)Calculate the mass of PCl5, that must be heated in a 1.0L flask at 250 oC in order to produce enough chlorine to give an equilibrium concentration,[Cl2]eq. of 0.20 mol/L? PCl5(g) <——> PCl3(g) + Cl2(g) Kc = 0.480
- Which of the following compounds is soluble in water? BaS PbCO3 PbCl2 PbSO4 None of these compounds is soluble in water.How many moles of Ca2+ and OH-ions are produced for every one mole of Ca(OH)2 that dissolves in solution? Ca(OH)2(s)↔Ca2+(aq) + 2OH–(aq)Which one of the following classes of ions yield predominantly soluble compounds? Group of answer choices A. Carbonates B. Sulfides C. Hydroxides D. Group IA ions
- What is the equilibrium expression (Keq) = for the following reaction:Fe3O4(s) + 4H2(g) 3Fe(s) + 4H2O(g)Calculate the equilibrium constant (Keq) for the following reaction. At equilibrium the [N2O4 ] = 0.0435 M [ NO2 ] = 0.0125 M N2O4 (g) ⇆ 2 NO2 (g)What is the equilibrium expression (Keq) for the reaction below? Mg3(PO4)2(s) <--> 3 Mg2+(aq) + 2 PO43–(aq)
- Carbonate, phosphate, and sulfate produce white precipitate upon the addition of barium nitrate. To differentiate these ions, drop wise addition of an acid leading to different observations. One particular reaction produces an effervescence. What is the identity of this gas? a. Br2 b. I2 c. NH3 d. HCl e. CO2An organic compound P with molecular formula C2H6Ois an active ingredient of all alcoholic drinks. It is also used in medicines such as tincture iodine, cough syTups.1dentif ‘P’. Drop a small piece of sodium into the test tube containing ‘P’.A new compound ‘Q’ is formed with the evaluation of colorless and odorless gas Name the gasevolved and compound ‘Q’ write the chemical reaction.What is the equilibrium expression for the sum of following reactions? NO2(g) + NO2(g) ⇌ N2O4(g) N2O4(g) + CO(g) ⇌ NO(g) + NO2(g) + CO2(g)