Question

select the correct answer.
use the solubility rules and the periodic table to predict the product that will precipitate out in the reaction
k₂so₄(aq) + ba(no₃)₂(aq) →?
a. kno₃
b. ba(no₃)₂
c. k₂so₄
d. k₂ba
e. baso₄

Explanation:

Step1: Write the chemical reaction

$$K_{2}SO_{4}(aq)+Ba(NO_{3})_{2}(aq)\to 2KNO_{3}(aq)+BaSO_{4}(s)$$

Step2: Apply solubility rules

• Nitrate salts ($NO_{3}^{-}$) are generally soluble. So, $KNO_{3}$ is soluble.
• Sulfate salts ($SO_{4}^{2 -}$) are generally soluble, but $Ba^{2+}$ is an exception. $BaSO_{4}$ is insoluble.

Answer:

E. $BaSO_{4}$