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Consider the transition metal complex [CoCl3(CO)3]. What is a) The oxidation state of the metal centre. b) The dn configuration of the metal centre. c) The co-ordination number of the metal centre.

a) +3. Cl ligands carry a negative charge while CO ligands are neutral so the all together the ligands have a charge of -3. Since the complex is neutral overall, the metal must cancel out the charge of t...

Answered by Robert S. • Chemistry tutor

7763 Views

Given the reaction: H2SO4 + NaOH --> ? + H2O. (a). Work out the salt produced (?) and (b). calculate the pH of the remaining solution when 1.2 g of NaOH and 4.41 g of H2SO4 were added in a 500 ml solution. Of the unreacted H2SO4 95% dissociated.

(a). Firstly, to work out the product, take 2Na⁺ + SO₂^- --> 2Na₂SO_4...

Answered by Dan W. • Chemistry tutor

5825 Views

What is ionisation energy?

The easiest way to understand ionisation energy is to look at the equation for ionisation.For example, the ionisation of magnesium is shown by the following:Mg---> Mg⁺ + e^- The io...

Answered by Hazel R. • Chemistry tutor

1982 Views

Ethanol can be made from the reaction between ethene and water. The reaction is exothermic and occurs at a high temperature. Describe and explain the effect of raising the temperature on the rate of achievement of equilibrium and the equilibrium yield.

The rate of achievement of equilibrium increases. This can be explained by collision theory. Because the temperature is increases the reactants have more energy and therefor the collisions between them be...

Answered by Alex N. • Chemistry tutor

6230 Views

What is electronegativity?

Electronegativity is the power of an atom to attract the electron density in a covalent bond towards itself.
It depends on1. The nuclear charge of the element2. The distance between the nucleu...

Answered by Izzy S. • Chemistry tutor

3268 Views