By Nigel Saunders, Angela Saunders, Sandra Clinton, Max Parsonage, Emma Poole
Fresh, up to date chemistry textual content for the recent AQA AS Chemistry specification beginning in 2008. Emphasises How technological know-how Works and is deal to follow-on from GCSE as a hugely obtainable textual content for complicated research.
Read or Download AS Chemistry for AQA: Student Book PDF
Best general & reference books
Geared toward scholars and researchers in arithmetic, heritage of arithmetic and technology, this publication examines the improvement of arithmetic from the overdue sixteenth Century to the tip of the twentieth Century. arithmetic has an amazingly lengthy and wealthy heritage, it's been practised in each society and tradition, with written documents attaining again sometimes so far as 4 thousand years.
To hide various subject matters in one ebook, that too for newbies, is a really tricky job. we've got attempted to offer the subject material very lucidly in order that the scholars can snatch it simply. a few parts of the subject material were highlighted in order that the scholars can comprehend the $64000 and salient gains of the themes.
The scope of this ebook is identical to that of "General Chemistry" by
Linus Pauling, third version, 1970. adjustments were made in
presentation and content material, and those are defined while prefaces
are in comparison. basic Chemistry was once designed “for use by means of first year
college college scholars who plan to significant in chemistry or in
closely comparable fields” while the current ebook is designed for
students “primarily drawn to biology, drugs, human
nutrition, and similar fields”. the previous e-book used to be longer via about
200 pages, and a number of other themes are handled much less carefully as, for
example, those who contain discussions of quantum and statistical
mechanics, and chemical thermodynamics. even though, atomic
structure and the periodic desk, the character of chemical bonds,
basic inorganic chemistry - in particular that of coordination
compounds, homes of strategies, chemical equilibria and other
subjects are mentioned with the competence and readability that assured
the good fortune of common chemistry for greater than two decades.
- Exploring Integrated Science
- Novel Materials for Catalysis and Fuel Processing
- Transition Metal Organometallics in Organic Synthesis
- General and Synthetic Methods Vol 5
- Solvent Extraction in Flame Spectroscopic Analysis
Extra info for AS Chemistry for AQA: Student Book
Cl Al Cl Cl Al Cl Cl The bonding in the aluminium chloride dimer. 03_04_AW_04 Polyatomic ions A polyatomic ion is a charged particle consisting of two or more atoms joined together by covalent bonds. The ammonium ion, NH14, is a polyatomic ion formed from an ammonia molecule and a hydrogen ion, H+. It contains four covalent bonds, and one of these is a co-ordinate bond. The ammonia molecule has a lone pair of electrons on its nitrogen atom. The hydrogen ion has a vacant orbital. This is because it is formed when a hydrogen atom loses its only electron.
Cl Group 7 and Group 3 Fluorine and chlorine are in Group 7 and both can donate a lone pair of electrons to form a co-ordinate bond. Boron and aluminium are in Group 3 and both can have vacant orbitals in their compounds. As a result, these elements are frequently involved in examination questions about co-ordinate bonding. For example, H3N→BCl3, H3N→AlCl3 and H3N→AlF3 would have identical dot and cross diagrams to H3N→BF3 (apart from the atom symbols of course). Cl Al Cl Cl Al Cl Cl The bonding in the aluminium chloride dimer.
2 What volume of ammonia will be produced if the nitrogen reacts completely? Mole ratio of ammonia to nitrogen is 2:1, so: 2 volume of ammonia = 3 100 = 200cm3 1 Molar volume The molar volume, Vm, is the volume occupied by one mole of gas. It depends on the temperature and pressure, so it is important that these 64 are stated. Unless you are told otherwise, you should assume that Vm is measured at standard temperature and pressure, STP. 15 K (assumed to be 273 K at A Level). • Standard pressure is 1 3 105 Pa.