Quantitative Chemistry Flashcards
1
Q
What is the relative atomic mass?
A
+The average mass of one atom
+(RAM)[Ar] is a way of saying how heavy different atoms are
+{Usually} relative atomic mass is the same as the mass number
2
Q
What is the relative formula mass?
A
(RFM)[Mr] - is all the relative atomic masses in a compound
3
Q
What is the theoretical yield?
A
+The theoretical yield is the maximum possible mass of a product that can be made in a chemical reaction.
4
Q
Why is the actual mass always less than the theoretical yield?
A
+The reaction may be reversible and so not go to completion
+Some of the product may be lost when it is separated from the reaction mixture
+Some of the reactants may react in ways different to the expected reaction.
