Advertisements
Advertisements
प्रश्न
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
Advertisements
उत्तर
Mass of calcium = 240g
Molar mass of calcium = 40g
Number of moles in 40g of calcium = 1 mole
Therefore, number of moles in 240g of calcium = 240 / 40 = 6 moles
Mass of magnesium = 240g
Molar mass of magnesium = 24g
Number of moles in 24g of magnesium = 1 mole
Therefore, number of moles in 240g of magnesium = 240 / 24 = 10 moles
Therefore, mole ratio of 240g of calcium to 240g of magnesium is 3:5.
APPEARS IN
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
If the aluminium salt of an anion X is Al2X3, what is the valency of X ? What will be the formula of the magnesium salt of X ?
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
Explain the term:
Mole
Find the number of molecules in 73 g of HCl.
Find the number of moles in 10 g of CaCO3.
What is Molar volume of a gas?
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Calcium carbonate
