Amount Of Substance

Question 1

WhT are the the steps for the flight mass spectrometer

Answer 1

Vacuum then ionised then accelerated then ion drift detection and data analysis
Vacuum held in a vacuum to prevent air molecules colliding with the ions
Accelerated positive ions towards negative electric plate to same kinetic energy so speed of the atom is dependent on the ma
Ion drift defected by an magnetic field which cause a beam to be forms which passed throguh a hole
Detection ion gain an electron at the negative plate

Question 2

Why is the electron spin property

Answer 2

Two electrons in the same orbital must have spin opposite spins
Two electrons are displayed as oppositely orientated

Question 3

What is ionisation energy

Answer 3

Energy needed to remove one mole of electrons from one mole of atom in gaseous state

Question 4

Why is it called successive energies

Answer 4

The first electron is removed from a neutral atom so required least amount of energy to remove the second electron removed is from ion with a positive charge so greater attraction

Question 5

What is empirical formulae

Answer 5

Simplest whole number ration of in an element within a compound

Question 6

How can yield decrease

Answer 6

When transferring from different containers
When filtering products some may be left behind in the beaker
When removing or drying fired from filter paper not all we transferred
Reaction. Is reversible and doesn’t go into completion

Question 7

What is an orbital

Answer 7

Electron density surrounding the atom where we are likely to find an electron
Have a different shape and can hold different amount of electrons

Question 8

What is relative atomic mass

Answer 8

Average mass of an atom of an element % 1/12 mass of a carbon 12 atom