Answer:
Explanation:
The kilogram (abbreviation, kg) is the Standard International (SI) System of Units unit of mass.
Answer: The mass of 0.5 mole of element ab is 81.67 g.
Explanation:
According to the mole concept, 1 mole of a substance contains . As, the mass of atoms is 0.49 g.
So,
Therefore, mass of 1 mole =
= 163.33 g/mol
Hence, mass of 0.5 mole of ab element is calculated as follows.
= 81.67 g
Therefore, the mass of 0.5 mole of element ab is 81.67 g.
Answer:
Because of the frequency off the wave I think
Explanation: