How many grams of solute are present in 275 ml of a 12.5% (m/v) solution of methanol?

34.375 grams of solute are present in 275ml of a 12.5%(m/v) solution of methanol.

Explanation:

12.5% methanol solution which means

   100ml solution contain  12.5 grams methanol

   1  ml  solution contain  12.5/100 grams methanol

   275 ml solution contain 12.5/100*275

                                            =  34.375 grams of methanol .

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.