3) Calculate how many formula units are in 7.11 moles of CaCl2.

42.82 × 10²³ formula units

Explanation:

Given data:

Number of moles of CaCl₂ = 7.11 mol

Number of formula units = ?

Solution:

We will solve this problem by using Avogadro number.

1 mole of substance contain 6.022× 10²³ formula units.

7.11 mol × 6.022× 10²³ formula units / 1mol

42.82 × 10²³ formula units

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.