div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 9button div class=ts-image a href=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5page9jpg target=_blank amp-img class=ts-thumb alt=Page 9: vanbanphapluatcoChuån bi hai 6ng dong hinh tru dung tích 250 ml 334 -có nút dêy Rót vào mði 6ng 20 ml dung natri hydroxit 2 N 321 Dùng mot 6ng hút bång cao src=https:reader043vdocumentspubreader043viewer20220407235e345e001cbfd85e3f5efb01html5thumbnails9jpg width=142 height=106 layout=responsive amp-imga divdiv