74. What is the empirical formula for a compound which contains 73.9%Hg and 26.1% Cl

Hg is the empirical formula for a compound which contains 73.9%Hg and 26.1% Cl.

Explanation:

given that:

Hg = 73.9 %  atomic mass of Hg= 200.59

Cl = 26.1        atomic mass of Cl= 35

let us assume that this percentage is in 100 grams.

number of moles =

number of moles of Hg =

                                        = 0.363 moles

number of moles of Cl =

                                      = 0.735 moles

molar ratio of  Cl and Hg  =

                                        =  2:1

In emperical formula first cation then anion is written.

We can see that Cl is twice the number of Hg. So the formula is

Hg is the empirical formula

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.

the answer is 0.42 is that is an option. this question provides no info