AS Chemistry- stoichiometry

1)      The definition ‘Average weighted mass of an atom of an element compared to value of unified atomic mass unit’ refers to

• Relative molecular mass

• Relative atomic mass

• Relative formula mass

• Relative isotopic mass

Tags

NGSS.HS-PS1-7

2)     Define unified atomic mass unit.

Tags

NGSS.HS-PS1-7

2)     The definition 'Average weighted mass of a molecule compared to value of unified atomic mass unit' refers to:

• Relative molecular mass

• Relative atomic mass

• Relative formula mass

• Relative isotopic mass

3) Define mole.

4)      State numerical value for Avogadro’s constant, L including its unit.

Tags

NGSS.HS-PS1-7

3) The definition 'Mass of one formula unit of an ionic compound compared to value of unified atomic mass unit' refers to:

• Relative molecular mass

• Relative atomic mass

• Relative formula mass

• Relative isotopic mass

4)     Mass of one atom of an isotope compared to value of unified atomic mass unit.

• Relative molecular mass

• Relative atomic mass

• Relative formula mass

• Relative isotopic mass

5)      The simplest whole number ratio of an element present in one molecule refers to:

• Empirical formula

• Molecular formula

6)      The actual number of atoms of each element present in one molecule refers to:

• Empirical formula

• Molecular formula