Atomic Structure, Analysis & Quantitive Chemistry Flashcards
0
Q
What order should you calculate the empirical formula
A
M . Mass
A . Atomic mass
M . Moles
D . Div by smallest mole
1
Q
What is an isotope
A
Atoms of the same element that have a different number of nuetrons
2
Q
What is a yield
A
The amount of product you get from a reaction
3
Q
Why may it not be possible to obtain the calculated amount of product?
A
- May be reversible reaction
- Some of the product may be lost during the separation
- Some of the reactants may react in a different way
4
Q
What is meant by a reversible reaction?
A
When the products of the reaction react to produce the initial reactants
5
Q
What do the number of peaks on a has chromatograph present
A
The number of compounds present
6
Q
What does the position of the peaks on a gas chromatograph present
A
The retention time
7
Q
What can the gas spectrometer identify?
A
Substances very quickly and accurately
Also the relative molecular mass
