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(i) State the electron domain geometry of the water molecule. (ii) Deduce the Lewis (electron dot) structure of water and sketch its 3D molecular shape. (iii) Explain, with reference to the forces between molecules, why water has a higher boiling point than…
Sulfur trioxide is manufactured industrially by the oxidation of sulfur dioxide. 2 SO2(g) + O2(g) ⇌ 2 SO3(g) ΔH⊖ = −198.0 kJ mol−1 (i) Outline what is meant by dynamic equilibrium. (ii) Deduce the Kc expression for this…
(i) Identify the oxidation state of metal S in SSO4. (ii) Deduce the order of reactivity of the five metals, from the most reactive to the least reactive.
Sketch the voltaic cell that would produce the greatest cell potential (EMF) using the metals and solutions in this experiment. On your diagram label the metal and the solution in each half-cell, the anode, the cathode, the salt bridge and the direction of…
Deduce the products formed at each electrode during the electrolysis of molten magnesium iodide, MgI2. Anode (positive electrode): Cathode (negative electrode):
What is the mass of one molecule of white phosphorus, P4? Use NA = 6.02 × 1023 mol−1. A. 5.1 × 10−23 g B. 2.1 × 10−22 g C. 4.9 × 1021 g D. 7.5 × 1025 g
In air, sulfur dioxide can be oxidized to sulfur trioxide. The reaction is reversible, and at high temperature it reaches equilibrium in a closed container. 2 SO2(g) + O2(g) ⇌ 2 SO3(g) (i) At 600 °C the equilibrium constant, K, for this reaction is…
Ozone, O3, is formed in photochemical smog from oxygen molecules and oxygen atoms. Deduce the Lewis structure of ozone.
Predict the O-O-O bond angle in ozone, O3.
Acid deposition forms when oxides of sulfur dissolve in water in the atmosphere. Write an equation for sulfur(VI) oxide reacting with water to produce an acid.