Koj npaj ib qho kev daws los ntawm dissolving ib tug paub pawg ntawm solute (feem ntau yog ib qho khoom) rau hauv ib qho nyiaj tshwj xeeb ntawm cov kuab tshuaj. Ib txoj hauv kev tshaj plaws los qhia txog qhov concentration ntawm cov tshuaj yog M lossis molarity, uas yog moles ntawm cov kuab tshuaj ib liter ntawm kev daws.
Yuav ua li cas thiaj daws tau 1%?
Ib feem pua txhais tau tias yog 1 gram ntawm cov kuab tshuaj rau 100 milliliters zaum kawg ntimPiv txwv li, 1 gram ntawm sodium chloride, coj mus rau qhov kawg ntim ntawm 100 ml nrog distilled. dej, yog 1% NaCl tov. Txhawm rau pab rov qab cov ntsiab lus ntawm 1% kev daws, nco ntsoov tias ib gram yog qhov loj ntawm ib milliliter dej.
Koj ua li cas thiaj daws tau 5%?
Yuav ua kom 5% tov, noj ib feem ntawm qhov hnyav ntawm cov hmoov thiab ntxiv rau 19 feem ntawm qhov hnyav ntawm hnyav. Piv txwv li, yaj 50 grams ntawm sodium carbonate hauv 950 grams dej.
Yuav ua li cas thiaj daws tau 10%?
A 10% ntawm cawv daws los ntawm ntim muaj kaum ml ntawm cawv yaj hauv 100ml ntawm kev daws. Ntsuas 10 ml ntawm sodium chloride. Ncuav nws mus rau hauv lub khob ntim ntim uas muaj li ntawm 90ml dej (swirl lub khob maj mam yog tias tsim nyog).
2% kev daws yog dab tsi?
2% w / w tov txhais tau tias grams ntawm solute yog yaj hauv 100 grams ntawm cov tshuaj. … 3% v/w tov txhais tau hais tias 3 ml ntawm cov kua yog yaj nyob rau hauv 100 grams tov.
