Reaction Rates

Reaction Rates

C039/1323 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.2MB

Downloadable file size: 5.8MB

Price image Pricing

Please login to use the price calculator


Credit: Turtle Rock Scientific/SCIENCE PHOTO LIBRARY

Restrictions:

Caption: Reaction rates. Reaction rate increases with concentration of reactants. This effect is demonstrated here using the reaction of chalk (calcium carbonate, CaCO3) with hydrochloric acid (HCl) and sulfuric acid (H2SO4), both 0.2 M molar concentration. Both acids completely dissociate in an aqueous solution. For the same molar concentration, sulfuric acid produces twice as many hydronium ions (H3O+) compared to hydrochloric acid. Carbon dioxide (CO2) bubbles are produced in the respective reactions: CaCO3 + HCl -> CaCl2 + H2O + CO2 and CaCO3 + H2SO4 -> CaSO4 + H2O + CO2. The reaction is visibly more vigorous (higher reaction rate) in the right beaker (sulfuric acid) than in left beaker (hydrochloric acid).

Release details: Model release not required. Property release not required.

Keywords: acid, beaker, bubbles, caco3, calcium carbonate, carbon dioxide, carbonate, chalk, chemical, chemistry, co2, concentration, diprotic, dissociation, h2so4, hcl, hydrochloric acid, molar concentration, molarity, monoprotic, normality, rate of reaction, reacting, reaction, reaction rate, strong acid, sulfuric acid

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.