The solubility of barium carbonate, baco3, is 0.0100 g/l. its molar mass is 197.3 g/mol. what is the ksp of barium carbonate? express your answer numerically.

Answer : The value of is,

Explanation :

First we have to calculate the solubility in mole/L.

The balanced equilibrium reaction will be,

The expression for solubility constant for this reaction will be,

Now put the value of solubility in this expression, we get the of barium carbonate.

Therefore, the value of is,

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e