A)Suppose that Li2O is added as an impurity to CaO. If the Li+substitutes for Ca2+, what kind of vacancies would you expect to form? How many of these vacancies are created for every Li+added?(b)Suppose that CaCl2is added as an impurity to CaO. If the Cl-substitutes for O2-, what kind of vacancies would you expect to form? How many of the vacancies are created for every Cl-added?

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

the answer is c

tell me if wrong