Dear Hajar Benrzeil, you can get it either from the supplier of the product or get it experimentally via conventional techniques such as viscometry and GPC. My Regards

Dear Hajar Benrzeil . You can calculate it easily from the molecular formula directly . The percentage will not affect the molecular weight.

If you send me the exact chemical formula of your compound , I will calculate it easily for you.

dear Aref Wazwaz i have poly vinyl alcool formula (C2H4O)n MW=89000

I want to know exactly how can I weigh for reaction with 1mmol of PVA

my regards

Dear Hajar Benrzeil . The weight can be calculated as follow :

1mmole PVA = 89000/1000= 89 g of pure PVA.

weight of PVA needed from the solution =10 x(89)= 890 g because the solution contain only 10% and not 100% PVA.

Wish you the best always.

dear Aref Wazwaz thank you so much for your help

best regards

You are most welcome dear Hajar Benrzeil . Wish you the best always