Zadanie 5f
State one reason why real gases such as butane and ammonia deviate more from ideal behaviour as the pressure increases.
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State one reason why real gases such as butane and ammonia deviate more from ideal behaviour as the pressure increases.
Oxidation of cyclohexanol, C6H11OH, gives cyclohexanone. Cyclohexanol itself is made by adding water to a compound H. Draw the structure of H.
1-Bromopropane reacts with aqueous sodium hydroxide to give propan-1-ol. (i) Identify the type of mechanism for this reaction. (ii) Explain the mechanism, using curly arrows to show the movement of electron pairs.
2-Chloropentane exists as two stereoisomers. (i) Using wedge-dash notation, draw the two stereoisomers of 2-chloropentane. (ii) Outline a way of telling the two enantiomers apart.
Which element is in the f-block of the periodic table? A. U B. Ba C. Hf D. Rf
Use the mass spectrum shown to determine the relative atomic mass of chromium.
(i) Deduce the nuclear symbol, ZAX, of the chromium-52 ion that contains 21 electrons. (ii) Complete the orbital diagram of this ion by drawing an arrow for each electron. (iii) Predict whether this ion is paramagnetic or diamagnetic and…
The complex ion [Cr(H2O)6]3+ is violet and absorbs light most strongly at about 580 nm. The complex ion [Cr(NH3)6]3+ is orange and absorbs light most strongly at about 465 nm. (i) Explain why the two complex ions have different colours. Use…
The iodine number of a fat or oil is the mass, in grams, of iodine that reacts with 100 g of the fat or oil. It is a measure of the degree of unsaturation. A 3.50 g sample of peanut oil reacts completely with 65.5 cm3 of…
Which graph shows the correct trend in the first ionization energies of the elements with atomic number Z = 11 to Z = 18? A. Graph A B. Graph B C. Graph C D. Graph D