Video b\u1ed5 tr\u1ee3 ki\u1ebfn th\u1ee9c \u00f4n thi \u0111\u1ea1i h\u1ecdc m\u00f4n H\u00f3a h\u1ecda v\u1ec1 S\u1ef1 \u0111i\u1ec7n li, pH c\u1ee7a dung d\u1ecbch do Th\u1ea7y gi\u00e1o L\u00ea V\u0103n Khu, Tr\u01b0\u1eddng \u0110H S\u01b0 ph\u1ea1m H\u00e0 N\u1ed9i s\u1ebd h\u01b0\u1edbng d\u1eabn c\u00e1c em h\u1ecdc sinh t\u00ecm hi\u1ec3u v\u1ec1 s\u1ef1 \u0111i\u1ec7n li v\u00e0 pH c\u1ee7a dung d\u1ecbch.<\/strong><\/p>\n \u0110\u1ec3 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn s\u1ef1 \u0111i\u1ec7n li, pH c\u1ee7a dung d\u1ecbch c\u1ea7n ch\u00fa \u00fd nh\u1eefng v\u1ea5n \u0111\u1ec1 sau:<\/p>\n – N\u1eafm v\u1eefng kh\u00e1i ni\u1ec7m s\u1ef1 \u0111i\u1ec7n li, ch\u1ea5t \u0111i\u1ec7n li, ch\u1ea5t \u0111i\u1ec7n li m\u1ea1nh, ch\u1ea5t \u0111i\u1ec7n li y\u1ebfu, \u0111\u1ed9 \u0111i\u1ec7n li v\u00e0 h\u1eb1ng s\u1ed1 \u0111i\u1ec7n li pH= – lg[ H+]<\/p>\n \u0110\u1ec3 l\u00e0m r\u00f5 th\u00eam c\u00e1c b\u00e0i t\u1eadp minh h\u1ecda cho ph\u1ea7n s\u1ef1 \u0111i\u1ec7n li, pH c\u1ee7a dung d\u1ecbch, ch\u00fang ta s\u1ebd nghi\u00ean c\u1ee9u m\u1ed9t s\u1ed1 v\u00ed d\u1ee5:<\/p>\n
\n– Qu\u00e1 tr\u00ecnh ph\u00e2n li y\u1ebfu l\u00e0 c\u00e2n b\u1eb1ng \u0111\u1ed9ng v\u00e0 tu\u00e2n theo nguy\u00ean l\u00fd chuy\u1ec3n d\u1ecbch c\u00e2n b\u1eb1ng L\u01a1 Sa t\u01a1 li \u00ea
\n– pH l\u00e0 ch\u1ec9 s\u1ed1 d\u00f9ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 axit, ki\u1ec1m c\u1ee7a dung d\u1ecbch v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo quy \u01b0\u1edbc:<\/p>\n