Mole Concept & Avogadro Number
Calculate the mass of O2 molecule?
What is the mass of one molecule of oxygen?
Calculate the number of atoms in 52 u of .
What is the mass of one atom of in grams?
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
214.2 g of sugar syrup contains 34.2 g of sugar.
(i) molarity of the solution
(ii) mole fraction of sugar in the syrup.
Which among the following has maximum mass?
mole of ammonia
atoms of carbon
molecules of carbon dioxide
Howis different from?
3.42 g of sucrose are dissolved in 18g of water in a beaker. The number of oxygen atoms in the solution are
Calculate the number of moles in 9 grams of aluminium.
How do you determine the molar mass of helium?
Calculate the number of moles for a number of atoms (finding mole from number of particles).
Calculate the number of moles of magnesium present in a magnesium ribbon weighing . The molar atomic mass of magnesium is .
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol−1.
Calculate the number of moles in 2.2g of .
What is the mass of:
(a)0.2 mole of oxygen atoms?
What is a gram molecule? And gram equivalent? Give an example
The molecular weight of Magnesium oxide is_______
Which of the following contains maximum number of molecules?
Which of the following would weigh the highest?
(a) 0.2 mole of sucrose (C12H22O11)
(b) 2 moles of CO2
(c) 2 moles of CaCO3
(d) 10 moles of H2O
Hemoglobin contains 0.33% of iron by weight. The molecular mass of hemoglobin is about 67200. The number of iron atoms (atomic mass of Fe = 56) present in a molecule of hemoglobin is?
What is the mass of one mole of water?
Calculate the percentage of magnesium in magnesium carbonate.
If one mole of carbon atoms weighs 12 grams, what is the mass (in grams) of 1 atom of carbon?
- 1 mol
- 2 mol
- 1.5 mol
- 0.5 mol
How many grams are there in of oxygen ?