The mass of one Avogadro number of helium atom is
...The mass of one Avogadro number of helium atom is
1.00 gram
4.00 gram
8.00 gram
4 x 6.02 x 1023 gram
Correct answer is B
No explanation has been provided for this answer.
When copper powder is heated with concentrated sulphuric acid, the gas produced is? ...
What is the chemical symbol for Hafnium? ...
How many atoms are there in one mole of hydrogen gas? [Avogadro's constant = 6.02 x 1023mol-1] ...
Which of the following is NOT involved in the extraction of metals from their ores?...
What is the product Cx Hy in the following equation? C10H22 → C8H18 + ...
Allotropes of an element differ in their ...
The gas that can best be collected by downward displacement of air is ...