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A: 1. Na2CO3 + 2 HCl →2 NaCl + CO2 + H2O So, 2 mol HCl : 1 mol Na2CO3 Now, Moles of HCl used = Molari...
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Q: Why is ethane a nonpolar covalent bond?
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Q: 3. If 50.00 mL of 1.00 M HC,H,O, (K, = 1.8 x 105) is titrated with 1.00 M NaOH. What is the pH of th...
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Q: 1. What is the pH of a water that contains 120 mg/L of bicarbonate and 15 mg/L of carbonate ions?
A: Given: Concentration of bicarbonate i.e. HCO3- = 120 mg/L. And concentration of carbonate i.e. CO32-...
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Q: 5. A 300.0 mg sample containing Na,CO3, NaHCO3 and NaOH and inert material either alone or in some c...
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A: Given : pH = 4.76
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A: Given: Concentration of NaC6H7O6 = 0.15 M And pH of solution = 8.65
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A: Given percentage by mass HF = 48℅ density of solution = 1.17 g/ml
Q: 1. Mg Br 2. Br
A: The reaction given is,
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Q: T electrons tha
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draw the product
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- What are the respective concentrations (M) of Fe3+ and I- afforded by dissolving 0.200 mol FeI3 in water and diluting to 725 mL?(a) What is the oxidation state of P in PO43 - and of N inNO3- ? (b) Why doesn’t N form a stable NO43 - ion analogousto P?Write a balanced net-ionic equations to describe a. reduction of Fe3+ to fe2+ by SO2b. reaction of H2MoO4 in a Jones reductorc. oxidation of HNO2 by a solution of MnO4-d. reaction of aniline (C6H4NH2) with a mixture of KBrO3 and KBr in acidic solutione. air oxidation of HAsO3(2-) to HAsO4(2-)f. reaction of KI with HNO2 in acidic solution
- Use data from CRC_Std_Thermodyn_Substances and CRC_Std_Thermodyn_Aqueous-Ions to calculate ΔrH∘ΔrH∘ (in kj/mol) for the following at 25 ∘∘C. 2CaC2O4(s)⟶4CO(g)+O2(g)+2CaO(s)matter eith constant composition in its structure is classified as?What is the dominant iron species in water samples ? What environmental factors may have contributed. why is it necesseyy to to investigate Fe3+ concentration and total Fe concentration dpeedtaely ? Why do we need to do the sample to determine total Fe concentration ? And how did then determine Fe2+ concentration?
- Calculate the pH of an aqueous solution prepared by dissolving 5.61 g of KOH pellets in water and diluting to a final volume of 0.500 L. (At. wts: K = 39.10, O = 16.00, H = 1.008)(a) What compound precipitates when aqueous solutions ofFe21SO423 and LiOH are mixed? (b) Write a balanced equationfor the reaction.A 0.7336-g sample of an alloy that contains copper and zinc is dissolved in 8 M HCl and diluted to 100 mL in a volumetric flask. In one analysis, the zinc (At. Mass = 65.38 g/mol) in a 25.00-mL portion of the solution is precipitated as ZnNH4PO4, and isolated as Zn2P2O7 (FM = 304.70g/mol), yielding 0.1163 g. The copper (At. Mass = 63.55 g/mol) in a separate 25.00-mL portion of the solution is treated to precipitate CuSCN (121.63 g/mol), yielding 0.2383 g. Calculate the %w/w Zn and the %w/w Cu in the sample.
- Calculate the PH and POH for a .008 Moles solution of HC2H3O2 and .01 Moles in KC2H3O2Hydrogen peroxide can act as either an oxidizing agent or a reducing agent. (a) When H₂O₂ is treated with aqueous KI, I2 forms. In which role is H₂O₂acting? What is the oxygen-containing product formed? (b) When H₂O₂ is treated with aque-ous KMnO₄, the purple color of MnO₄ disappears and a gasforms. In which role is H₂O₂ acting? What is the oxygen-containing product formed?The phosphorus contained in a rock sample weighing 0.5428g, is pp in the form of MgNH4PO4x6H2O and is calcined to Mg2P2O7. If the calcined pp weighs 0.2234g calculate, a)% P2O5 b)% P
