OCR A Level
Chemistry - Paper 1
2022 Advanced Info
Quiz
, OCR A Level Chemistry - Paper 1 2022 Advanced Info Quiz
.
1. What is Avagadro's constant?: 6.02 x 10^23 number of particles in a mol 2.
Define empirical formula: The simplest whole number ratio of atoms of each
element present in a compound
3. Define molecular formula: The number and type of atoms of each element in
a molecule
4. What is water of crystallisation?: Water molecules that are bonded into a
crystalline structure of a compound
5. What is the ideal gas equation? What are the units of each term?: pV= nRT
- p = Pa, V = m3, n = mol, R = J/K/mol, T= K
6. How do you determine percentage yield?: Percentage yield = (actual
yield/theoretical yield) x 100
7. What is atom economy?: Atom economy = (mass of desired product/mass of
total product) x 100