Mole Concept
Trending Questions
Q. Mass of a mole of electrons is
- 0.20mg
- 1.00mg
- 0.02mg
- 0.55mg
Q. An atom is 10 times heavier than 112th of mass of a C-12 . The mass of the atom in amu is:
- 10
- 1.2
- 12
- 120
Q. The total no of ions present in 111 g of CaCl2 is
- One mole
- Two mole
- Three mole
- Four mole
Q. One mole of P4 molecules contains
- 4 molecules of p
- 23 6.022
atoms of p
- 1 molecule of p
atoms of p
Q. The average mass of one atom of gold is 3.2707×10−22 g. The molar mass of gold is:
- cannot caluculate
Q. Avogadro’s number represents the number of atoms in
- 32g of oxygen
- 12g of C -12
- 32g of sulphur
- 12.7g of iodine
Q. The number of molecules in 89.6 L of a gas at STP are:
Q. A piece of Cu contains 6.022×1024 atoms. How many mole of Cu atoms does it contain?
- 10 mole
- 5 mole
- 2 mole
- 1 mole
Q. Which of the following contains maximum no. of molecules?
- 150 cc of
at S.T.P
- 200 cc of
at S.T.P
- 50 cc of
at S.T.
- 150 cc of
at S.T.P
Q. Which of the following is correct?
- Mole = g-mol.wt
- None of the above
- g-mol.wt = mol. wt in gm = wt. of
atom
- Mole =
molecules =
molecules