Formulae Equations And Amounts Flashcards
1
Q
Soluble salts
A
All sodium, potassium and ammonium salts
All nitrate salts
Sulphate salts except calcium barium and lead
Chloride salts except silver and lead
2
Q
Ideal gas law
A
pV = nRT
3
Q
What is empirical formulae
A
The simplest ratio of each element in a compound
4
Q
Why is a % yield likely to be less than 100%
A
Reactants may not be totally pure
Some products may be lost in the transition from one reaction vessel to another
Side reactions may convert reactants or products
Equilibrium may be established
5
Q
% yield calculation
A
% yield = (actual yield/theoretical yield) * 100
6
Q
Atom economy calculation
A
Atom economy = (Mr of atoms in desired product/total sum of all reactants) * 100
7
Q
How to calculate % error
A
% error = (margin of error/quantity measured) * 100
