. . "0"^^ . . . . . . . . . . . . "the strength of a solution; number of molecules of a substance in a given volume"@en-us . . "concentration"^^ . . . . . . "0"^^ . . "concentration"@en-us . . . . . "105038593"^^ . "104768526"@en-us . . . . . . . . . . . . . . . "05038593-n"^^ . . . . "103933851"@en-us . .