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Atomic Structure
Amount of Substance
Bonding
Periodicity
Organic
100
The energy required to remove one mole of electrons from one mole of gaseous sodium atoms to from one mole of gaseous positive ions. Na(g) ---------> Na+(g) + e-
What is 1st ionisation energy of sodium
100
PV= nRT
What is the Ideal Gas equation
100
HF exhibits this type of IMF.
What is Hydrogen Bonding
100
As you go along period 3 this increases until we reach Aluminium then it dramatically decreases.
What is electrical conductivity
100
This process is used to make branched alkanes which are used to make efficient fuels.
What is catalytic cracking
200
What is the question? 1s2 2s2 2p6 3s2 3p6 3d10 4s1.
What is the electronic configuration of copper
200
Ammonia is manufactured by the Haber Process. Calculate the percentage atom economy for the production of ammonia in this process.
100%
200
What is the keyword? Carbon dioxide has no overall net charge.
What is non-polar
200
This property can be attributed to the regular arrangement of Aluminium atoms which can then slide easily over one another.
What is malleable
200
2,2 dimethylhexane and 2,5 dimethylhexane are examples of ....
What is chain isomerism
300
Both chemicals have the same chemical properties. X1 has 49 protons and 64 neutron and X2 have 66 neutrons. What is X?
What is Indium isotopes (In 113 and In 115)
300
6.27g of magnesium carbonate were added to an excess of sulfuric acid. Calculate the amount (in moles of Magnesium carbonate.
0.074 moles
300
BF3 is trigonal planar. The bond angle you would expect is...
What is 120
300
Why silicon has a very high melting point?
Silicon is a macromolecule with strong covalent bond which must be broken.
300
What do these characteristics describe: 1. Same general formula 2. Chemically similar 3. Same functional groups 4. Trends in physical properties increases as the RFM increases.
What is homologous series
400
In a mass Spectrometer particles are accelerated by __________ .
What is an electric field.
400
Glauber’s salt is a form of hydrated sodium sulfate that contains 44.1% by mass of sodium sulfate. Hydrated sodium sulfate can be represented by the formula Na2SO4.xH2O where x is an integer. Calculate the value of x.
What is x=10
400
The shape of XeF4 is...
What is square planar
400
What is the question? There is an increase in Van Der Waal forces as the atoms become larger from H2S(l) to H2Te(l).
Why is there an increase in boiling point from H2S to H2Te.
400
Name this structure: CH3CHICH(CH3)CH2CHICH3
What is 2,5 di-iodo-3-methyl hexane
500
Out of every 100 atoms: 90.92 are X-20; 0.26 are X-21 and the rest are X-22. What is X?
What is Neon 20.18
500
In an experiment, 0.658 mol of CO2 was produced. This gas occupied a volume of 0.0220 m3 at a pressure of 100kPa. Calculate the temperature of the CO2 and state the units.
402.3 K or 123 C
500
Predict the bond angle in CIF2+ ion
What is 120
500
What is the question? Increase As you go from Sodium to Chlorine the nuclear charge increases and the atomic radius decreases. There is also similar shielding as electrons are being taken from the same sub shell meaning that the attraction between the nuclear and electrons becomes greater as you go from Na to Cl.
State and explain the general trend in 1st Ionisation energy of the Period 3 elements
500
How is NO removed from the exhaust gases in a catalytic converter?
2CO + 2NO --> 2CO2 + N2 OR C8H18 + 25NO --> 8CO2 + 12.5 N2 + 9H2O Pt/ Pd/ Rh/ I