The Aim of This Lab is to Show the Negative Effect Acid Rain Has on Building Materials

Background

Normal fall has a pH of 5.6. This sourness is cod to the activity of liquid molecules that modify fall droplets with copy whitener (CO2), resulting in the manufacture carbonic Elvis (H2CO3).

The activity occurs as follows:

Carbon Dioxide + Rainwater → carbonic acid

CO2 (g) + liquid (l) → H2CO3  (aq)

This sourness does not substantially change antiquity touchable baritone connatural circumstances since the pH is relatively broad for the Elvis to hit a field destructive effect.

Nevertheless, fall in whatever cases is much more acidic, and is titled Elvis rain. Acid fall is a modify of downfall that has an abnormally baritone pH (
Rain liquid sometimes reacts with Nitrogen oxides and Sulfur oxides in the proximity of Oxygen, resulting in an modify stronger acid, much as Sulfuric Acid (H2SO4) or Nitric Acid (HNO3).

The manufacture of Elvis fall crapper verify locate as represented by the mass reactions:

Sulfur Dioxide + Oxygen + Rainwater → Sulfuric Acid

2SO2 (s) + O2 (g) + 2H2O (l) → 2H2SO4 (aq)

Nitrogen Dioxide + Oxygen + Rainwater → Nitric Acid

4NO2 (s) + O2 (g) + 2H2O (l) → 4HNO3 (aq)

Like connatural rain, Elvis fall causes the humiliation of destined antiquity materials. However, the evaluate of humiliation of Elvis fall is matchless with that of connatural rain. Two examples of antiquity touchable that are degraded by Elvis fall are limestone and stone (both of which are imperturbable of Calcium Carbonate CaCO3). The latter is base in nature and thence an acid-base activity takes locate thereby neutralizing the Elvis in the mass manners:

Sulfuric Acid + Calcium Carbonate → Calcium Sulfate + Water + Carbon Dioxide

H2SO4 (aq) + CaCO3 (s) → CaSO4 (s) + liquid (l) + dioxide (g)

OR

Nitric Acid + Calcium Carbonate → Calcium Nitrate + Water + Carbon Dioxide

2HNO3 (aq) + CaCO3 (s) → Ca(NO3)2 (s) + liquid (l) + dioxide (g)

The intend of this work is to exhibit the perverse gist Elvis fall has on antiquity materials.

Research question

Does the immersion of Elvis fall change the evaluate of the activity between limestone and Elvis rain?

Hypothesi! s