Quantitative Analytics Flashcards
What meant by relative atomic mass?
Average mass of atom of an element relative to atomic mass unit
Relative molecular mass=>___ compound
Relative formula mass=>_____compound
Covalent
Ionic
What is formula of percentage of a part??
Part/total×100
What is meant by mole?
Chemical expression express amount of substance
What is meant by molar mass?
Substance its relative atomic mass measure in gram if its a compound
How to get mole ??
Mass/ar or mass(g)/mr
Or
V(dm3)/24
How to change mole/dm4 to g/dm3
Multiply mr
What’s meant by limited reagent?
Reagent which used up first during chemical reaction and limit amount of products that can be formed.
What’s meant by excess reagent?
Reagent which remain when chemical reaction stops
How to change tonne to kg
×1000
How to change kg to g
×1000
Formula of yield?
Actual yeild/theoretical yeild ×100
Formula of percentage of puritu
Mass of pure soluble/Mass of impute substance ×100
What is meant by concentration of solution?
Amount of solute dissolved in certain volume of solvent