Question

How many grams of NaOH do you need to make a IM solution? How many grams of NaOH do you need to make a 3M solution? How many grams of C,H, Nao, do you need to make a IM sodium acetate buffer? How many grams are needed to make 50 mL of 25% HCI? How much water is needed if you are making 800 mL of 20% sodium hypochlorite (bleach) for cleaning a vessel?

Answer 1

Answer ! O IM Naon solution I lliter Entain Imobal Na on number al mob af na on= 1 molor mars alNaon=409/mo) - mass af Naoh nuded to make solutir = 1840=409 - Mass afhaot needed = 40g) 3M Noon soluky,'- iliter Gulains 3 mobal naon number almos al 19017= 3 mola mars of Naon = 40g/mol "- Mars al Nao11 needed = 40x3 = (120g. (1) Im C2 H₂ N902 solutis :- no al mob af (13 NaO2 = 1 Molor mars of Calls Naoz = 82 g/mol mars af (2hy Na O2 needed = 1X82 = 1 829

10) 50 mL of 25%. Hu: 25%, he =) loome ertains 5gne 50mL will Gulain = 112.5 g Hy