Calculate the mass of formic acid formed during the oxidation of 200 ml of a 40% formalin solution

Calculate the mass of formic acid formed during the oxidation of 200 ml of a 40% formalin solution with a density of 1.3 g / ml.

HCHO + Ag2O = HCOOH + 2Ag
1. First, we translate the volume of the solution into mass through the density:

m (solution) = V * p = 200 * 1.3 = 260 g.

2. Now, let’s determine the net mass of aldehyde in solution:

m (HCHO) = m (solution) * w (HCHO) = 260 * 0.4 = 104 g.

3. Substituting this mass into the equation, we obtain the mass of the acid:

the interaction of 30 g of aldehyde forms 46 g of acid, and

at 104 g of aldehyde, y = 46 * 104/30 = 159 g.
Answer: 159