quantitive chemistry Flashcards
(6 cards)
1
Q
conservation of mass
A
no atoms can be created or made during a chemical reaction sp the mass of the reactants will equal the mass of the product
2
Q
relative formular mass
A
is the sum of all the relative atomic masses of the atoms in formula
3
Q
calculating percentage mass of an element in a compounx
A
Ar X number of atoms of that element/ mr of the compound
4
Q
concentration of solutions
A
is the amount of a substance in a specific volume of a solution the more substances that is disolved then more concentrated solutionis
5
Q
calculate concentration of a solution
A
concentration (g/dm3)= mass(G)divided volume of solvent(gm3)
6
Q
A
