Answer:
The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge.
Answer:
Hydration (of an alkene)
Mechanism : Electrophilic addition.
Answer:
PV=nRt
Therefore n(number of moles)=PV/RT
=>(0.49×3.80)/(0.08206×320)
Therefore Number of moles is = 0.071mols
Explanation: By using the Real gas equation..
PV=NRT .
We can solve for the number of moles of Ar by making N the subject..
Always make sure you pressure is In atm, your Volume is in Litres and temperature in degree Kelvin.
Also Recall the universal gas constant R used in this type of questions which is 0.08206.
Hence l, by making N the subject we get our answer as
Answer:
17.8ml-15.6ml is 2.2 ml then convert to cm so 2.2cm^3
