Post a New Question


posted by .

Describe how you could make 5 mL of 2M potassium hydroxide solution if you have potassium hydroxide pellets available.

  • Chemistry -

    You want how many moles KOH? That is M x L = ? moles KOH.
    moles KOH = grams KOH/molar mass KOH. YOu know molar mass and moles, solve for grams. A quick note to say that KOH is hygroscopic and it picks up water as well as CO2 from the air; therefore, one can't use KOH as a primary standard because as soon as the new bottle is opened it becomes contaminated with H2O and CO2. The CO2 forms KHCO3 and K2CO3.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question