Concept explainers
Interpretation: The amount of
Concept introduction: The
Isomerism: Isomers are compounds with same molecular formula with different arrangements of atoms.
- Structural isomers: Have same molecular formula but different bonding arrangements of atoms. It is classified into coordination isomer (occurs by exchanging a coordinated ligand and the counter-ions) and linkage isomers (ligand attached through different atoms to the metal).
- Stereoisomers: differ in their spatial arrangement of atoms.
Balanced chemical equation: The
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Chemistry & Chemical Reactivity, Hybrid Edition (with OWLv2 24-Months Printed Access Card)
- [Fe(H2O)6]3+ (aq) + SCN1- ↔ Fe(H2O)5SCN]2+(aq) + heat yellow red For the above reaction, describe using Le Chatelier’s Principle what changes (color changes and shifts) would occur when each stress is applied to this equilibrium. Explain your answers. a) Add KSCN(aq) b) Decrease temperature c) Add AgNO3, which causes AgSCN to precipitate out.arrow_forwardIn the presence of aqueous ammonia, cobalt(III) forms the complex ion Co(NH3)63+. Determine the molar concentration of free cobalt(III) ion in solution when 0.210 mole of Co(NO3)3 is dissolved in a liter of 2.50 M aqueous ammonia.arrow_forwardCobalt(II) complex ion solution: [Co(H2O)6]+2(aq) + 4Cl-(aq) [CoCl4]-2(aq) + 6H2O(l) Pink Blue 1). When silver nitrate is added the blue color becomes pink. Why is that ? 2. When heat is added , in which direction the equilibrium will shift ? Is this reaction exothermic or endothermic ? 3.What happens when the temperature is lowered in the ice bath ?arrow_forward
- For [Co(NH3)6]3+ , Kf has a value of 5.00 × 1031. Calculate the concentration of free, uncomplexed Co3+ ions in a solution that contains a total of 0.160 mol/L cobalt III ions and an equilibrium concentration of 0.50 M NH3.arrow_forward(a) Draw a Lewis dot and cross structure (including any lone pairs) for a NBr3 molecule and determine the shape of the molecule and number of valence electrons. (b) Six ammonia ligands form a complex ion with Co²+. What is the overall charge of the complex ion? Write the formula for the complex ion. What is the coordination number of the complex ion? Explain how ammonia ligands form a complex ion with Co²+? What is the geometry of the complex ion? Would you expect the complex to be coloured? Explain why? i. ii. iii. iv. V. vi.arrow_forwardHow many geometric isomers exist for [CoCl2(en)2]Cl? How could you determine if your product contains a single geometric isomer or a mixture of geometric isomers?arrow_forward
- Draw all the possible geometric isomers for [CoBrCl(NH3)2(ox)]–.arrow_forwardWhat is the Transition Metal Oxidation Number? [Ru(H2O)3(CN)3]Brarrow_forwardCobalt (II) chloride can form two complexes when dissolved in water: [Co(H2O)6]2+(aq) which is pink in colour, and [CoCl4]2- which is blue. The equilibrium system isarrow_forward
- The formation of a complex between cobalt (III) cation and six ammonia (NH3) ligands is very favorable (K₁ = 2.3 x 10³3). Given an initial cobalt concentration of 0.0235 M and an initial ammonia concentration of 0.206 M, what will be the concentration of free cobalt ion (Co³+) at equilibrium? 1.4 x 10-28 M 4.3 x 10-34 M 3.3 x 10-41 M 1.2 x 10-27 M 1.6 x 10-34 Marrow_forwardWhy is [Fe(OH2)6]3+ prepared in an acidic solution? A. It is a Bronsted acid in aqueous solution B. It is stabilized against reduction in acid C. It is not soluble in water at pH = 7.0 D. All of the choicesarrow_forwarddraw the structure of [Fe(NH3)3(OH2)3][PtCl4]arrow_forward
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