Top answers

What is a dative covalent bond?

In essence, a dative covalent bond is just a covalent bond with an unpaired electron, therefore, shared between two atoms in a delocalised manner. An example of this is Carbon monoxide, which is formed in na...
OH
Answered by Oliver H. • Chemistry tutor
3308 Views

Explain the position and numbering system of elements on the periodic table.

For each element on the periodic table there are two key numbers associated with it, the atomic number and the atomic mass (top and bottom respectively). The atomic number is simply a count of how many proto...
GD
Answered by Glen D. • Chemistry tutor
16800 Views

25 cm3 of NaOH was titrated with 0.050 mol dm-3 HCl. NaOH + HCl --> NaCl + H2O. 21.5 cm3 HCl neutralised 25 cm3 NaOH. Concentration of NaOH in mol dm-3?

21.5 cm 3 / 1000 = 0.0215 dm 3 of HCl. n = cv so (0.050) x (0.0215) = 0.001075 mols of HCl. NaOH + HCl --> NaCl + H 2 O so there is a 1:1 ratio of reactants to products. Therefore there are 0.001075 mols ...
AS
Answered by Arran S. • Chemistry tutor
3493 Views

Why do we use cracking?

To split large chain hydrocarbons into smaller more useful and more valuable hydrocarbons
HA
Answered by Haider A. • Chemistry tutor
2684 Views

Why can both major and minor products be formed during an eimination reaction?

The double bond can be attacked by the OH nucleophile producing two possible carbocation intermediates. The more stable carbocation with more surrounding electron releasing methyl groups will be more stable ...
HA
Answered by Haider A. • Chemistry tutor
3482 Views