Advertisements
Advertisements
Question
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
Advertisements
Solution
The mass of 4 moles of aluminium atoms is (4 × 27) g = 108 g.
RELATED QUESTIONS
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
Calculate the molar mass of the following substance:
Sulphur molecule, S8
What is the mass of 0.2 mole of oxygen atoms?
Fill in the following blanks :
0.5 mole of calcium element has a mass of ............... .
Explain the term:
Mole
Fill in the blank
One gram atom of an element contains ______ atoms.
Calculate the number of moles and number of molecules present in 1.4 g of ethylene gas. What is the volume occupied by the same amount of ethylene?
The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:
How many moles of sulphur are present?
Correct the statement, if required.
The relative atomic mass of an element is the number of times one molecule of an element is heavier than `1/12` the mass of an atom of C12.
From the equation for burning of hydrogen and oxygen
\[\ce{2H2 + O2 -> 2H2O}\] (Steam)
Write down the number of mole (or moles) of steam obtained from 0.5 moles of oxygen.
