You have two solutions, $A$ and $B$. The $pH$ of solution $A$ is $6$ and $pH$ of solution $B$ is $8$. Which solution has more hydrogen ion concentration Which of this is acidic and which one is basic?
A $pH$ value of less than $7$ indicates an acidic solution, while greater than $7$ indicates a basic solution. Therefore, the solution with $pH =6$ is acidic and has more hydrogen ion concentration than the solution of $pH =8$ which is basic.
Metal compound $A$ reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
How is the concentration of hydronium ions $(H_3O^+)$ affected when a solution of an acid is diluted ?
A milkman adds a very small amount of baking soda to fresh milk.
$(a)$ Why does he shift the $pH$ of the fresh milk from $6$ to slightly alkaline ?
$(b)$ Why does this milk take a long time to set as curd ?
Plaster of Paris should be stored in a moisture-proof container. Explain why ?
Name the sodium compound which is used for softening hard water.