Advertisements
Advertisements
प्रश्न
Calcium chloride when dissolved in water dissociates into its ions according to the following equation.
\[\ce{CaCl2} (aq) → {Ca^{2+} (aq) + 2{Cl}- (aq)}\]
Calculate the number of ions obtained from CaCl2 when 222 g of it is dissolved in water.
Advertisements
उत्तर
\[\ce{CaCl2} → Ca^{2+} + 2Cl^-\]
111 g (1 moles) → 1 moles + 2 moles
222 g (2 moles) → 2 moles + 4 moles
Total number of ions given by 2 moles of CaCl2 = 6
Number of ions = Number of moles of ions × NA
= 6 × 6.022 × 1023
= 3.6132 × 1024 ions
APPEARS IN
संबंधित प्रश्न
What is the mass of 10 moles of sodium sulphite (Na2SO3)?
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
Prove the Following :
One mole of any gas contains th e same number of molecules.
Define the term:
Avogadro’s number
Define the term:
Mole
How many grams of CO2 is present in 0.1 mole of it?
Calculate the number of moles in 7g of nitrogen.
Calculate the number of moles in 27g of Al.
Deduce the number of molecules of the following compound in the given quantity.
7.1 g chlorine
