Question

a 50.0 ml solution of ca(oh)₂ with an unknown concentration was titrated with 0.340 m hno₃. to reach the endpoint, a total of 28.4 ml of hno₃ was required.
write the balanced chemical equation based on the following description: aqueous calcium hydroxide reacts with aqueous nitric acid to produce the aqueous calcium nitrate and liquid water.
ca(oh)₂(aq) + hno₃(aq) →

Explanation:

Step1: Identify reactants and products

Reactants are $Ca(OH)_2(aq)$ and $HNO_3(aq)$, products are $Ca(NO_3)_2(aq)$ and $H_2O(l)$.

Step2: Balance the equation

We need 2 moles of $HNO_3$ to react with 1 mole of $Ca(OH)_2$ to balance the atoms.
$Ca(OH)_2(aq)+2HNO_3(aq)
ightarrow Ca(NO_3)_2(aq) + 2H_2O(l)$

Answer:

$Ca(OH)_2(aq)+2HNO_3(aq)
ightarrow Ca(NO_3)_2(aq) + 2H_2O(l)$