Acid Base Flashcards
Define relative isotopic mass.
The mass of one atom of the isotope compared to 1/12 of the mass of one atom of 12C
Define relative atomic mass.
The weighted average of one mass of the isotope compared to 1/12 of one atom of 12C
Define relative molecular mass.
The average mass of one molecule of an element or a covalent compound compared to 1/12 mass of one atom of 12C
Define relative formula mass.
The mass of one formula unit of an ionic compound or ions compared to 1/12 mass of one atom of 12C
What is Avogadro constant?
6.02 x 10^23 no. of particles in one mole.
What are the stp and rtp conditions.
stp : 22.7dm^3 , 273K / 0 °C , 1 bar
rtp: 24.0dm^3 , 293K / 20 °C, 1 atm
1 bar = 10^5 Pa , 1 atm = 101325Pa , 1dm^3 = 1000cm^3
What is the equation for the combustion of hydrocarbons?
CxHy + (x + y/4)O2 > xCO2 + y/2H2O
What is an Arrhenius acid?
A substance that produces hydrogen ions H+ in water
What is an Arrhenius base?
A substance that produces hydroxyl ions in water , OH-.
What is a Bronsted-Lowry acid?
It is a conjugate base where it donates a proton to a base.
What is a Bronsted-Lowry base?
A conjugate acid that accepts a proton from an acid.
What is a Lewis acid?
A substance that accepts an electron pair , known as a lone pair acceptor.
What is a Lewis base?
A substance that donates an electron pair , known as a lone pair donator.