(a)
Interpretation: Two molecular formulas for the given molecules are to be proposed.
Concept introduction: Molecular mass is the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element. The compound that contain
(b)
Interpretation: Two molecular formulas for the given molecules are to be proposed.
Concept introduction: Molecular mass is the sum of the atomic weights of each constituent element multiplied by the number of atoms of that element. The compound that contain
(c)
Interpretation: Two molecular formulas for the given molecules are to be proposed.
Concept introduction: The molecular ion has odd mass, the compound may contain
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Chapter 12A Solutions
ORG CHEM CONNECT CARD
- (8) Answer each of the following questions: (a) Ka for HNO2 is 4.6 x 10-4. What is the Kb for its conjugate base ? (b) Calculate the pH of 0.1 M of HNO2 solution using the ka above.arrow_forwardHow many moles of (CH3)3N would need to be added to 459.2 mL of a 0.25 M solution of (CH3)3NHCL to produce a solution with a pH equal to 9.21?arrow_forward(3) HBrarrow_forward
- Rank the following acids in order of increasing strength: (a) HClO4, H3PO4, H2SO4; (b) H3PO4, H3AsO4, H3SbO4; (c) HOF, HOCl, HOBr, HOI; (d) HOCl, HClO2, HClO3, HClO4; (e) CH3CO2H, CF3CO2H, CCl3CO4H;arrow_forwardPlease Balance the following equation: CH3COOH (aq) + NaHCO3 (s) = CO2 (g) + H2O(l) + NaCH3COO (aq)arrow_forwardUsing Lewis structures, write balanced equations for the following reactions:(a) HCl(g) + PH3(g) ⟶(b) H3 O+ + CH3 − ⟶(c) CaO + SO3 ⟶(d) NH4 + + C2 H5 O− ⟶arrow_forward
- solution gave a scarlet-red flame test with a few flashes of yellow. The solution gave no reaction with ammonium carbonate, ammonium phosphate, or ammonium sulfate. The halide test produced a faint yellow color in the hexane layer. What is (a) the alkali or alkaline earth element, and (b) the halide in the unknown solution? (a) (b) 5. An unknown solution gave a brick-red flame test. The solution produced a white precipitate with ammonium carbonate, ammonium phosphate, and with ammonium sulfate afte heating. The halide test produced a yellow-orange color in the hexane layer. What is (a the alkali or alkaline earth element, and (b) the halide in the unknown solution? (a) (b) abi A fireworks display is produced by packing different chemicals and gunpowder in a ro shell and exploding the mixture in the air. Based on your experimental observations, w elements could produce the following colors of fireworks? (a) orange-yellow c) yellow-green (b) light purple (d) bright redarrow_forward3. Provide the order of addition of reagents added for the following conversions in the correct order. e O₂N CH₂arrow_forwardHow could you distinguish NH4Cl and AgCL? (a) By smell (b) By color (c) By solubility in water (d) By tastearrow_forward
- The single largest use of phosphoric acid is in the production of fertilizer. How many grams of phosphoric acid (with excess NH3) are required to produce 800 g of (NH4)2HPO4, a common fertilizer?arrow_forwardIs H2Cr2O7 an acid, base, or neutral? please justify your answer with an equation showing its dissociation.arrow_forwardCalculate the pH of 2.5 M CH2ClCOOH(aq) given that its Ka = 0.0014.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning