<http://webisa.webdatacommons.org/207633896>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wikidoc.org> .
<http://webisa.webdatacommons.org/207633896>	<http://www.w3.org/ns/prov#value>	"Activity is a measure of the effective concentration of hydrogen ions, rather than the actual concentration; it includes the fact that other ions surrounding hydrogen ions will shield them and affect their ability to participate in chemical reactions." .
<http://webisa.webdatacommons.org/207633896>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/345413818>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/207633896> .