Answer:
Heat required to melt 26.0 g of ice at its melting point is 8.66 kJ.
Explanation:
Number of moles of water in 26 g of water: 26× 
moles
=1.44 moles
The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol.
we have relation as:
q = n × ΔH
where:
q = heat
n = moles
Δ
H = enthalpy
So calculating we get,
q= 1.44*6.02 kJ
q= 8.66 kJ
We require 8.66 kJ of energy to melt 26g of ice.
Answer: pH = 7.36. The pKa of H2PO4− is 7.21.
Explanation:
Un sistema heterogéneo de 3 fases y 1 componente puede ser:
Sólido (hielo)
Líquido (agua)
Gaseoso (vapor)
Yes. Avogadro Law gives the relationship between volume and amount when pressure and temperature are held constant. Remember amount is measured in moles. This means the gas pressure inside the container will increase (for an instant), becoming greater than the pressure on the outside of the walls.
Answer:
The cation Fe3+ is formed when a. an atom of iron loses two electrons.
Explanation:
