Answer : The concentration of silver ion is,
Explanation :
Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.
The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.
As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.
The given equilibrium reaction is,
The expression of will be,
Therefore, the concentration of silver ion is,
Answer:
c and d, are you supposed to check 3? or only 2?
Metal - they are good conductors of electricity, malleable (easily shaped) and ductile (can be drawn into wires)
Answer:
1.67 ×10²³ atoms of hydrogen present in 2.5 g of water.
Explanation:
Given data:
Mass of water = 2.5 g
Number of hydrogen atoms= ?
Solution:
First of all we will calculate the molar mass of water.
Molar mass of H₂O = 16 +1 ×2 = 18 g/mol
The number of atoms will be determine through the Avogadro number.
The number 6.022×10²³ is called Avogadro number and it is the number of atoms or molecules in one gram of atoms of an element or one gram molecules of a compound.
First of all we will calculate the number of moles of water in 2.5 g.
Number of moles = mass /molar mass
Number of moles = 2.5 g / 18 g/mol
Number of moles = 0.139 mol
The number of molecules of water in 10 g.
0.139 × 6.022×10²³ = 0.837 ×10²³molecules
one water molecule contain two hydrogen atoms. For 0.837×10²³ molecules,
0.837×10²³× 2 = 1.67 ×10²³ atoms