| place 20.0 g NaOH(s) in a flask and dilute to 1.00 L with water | |
| place 0.500 g NaOH(s) in a flask and add 1.00 L of water | |
| place 20.0 g NaOH(s) in a flask and add 1.00 L of water | |
| place 0.500 g NaOH(s) in a flask and dilute to 1.00 L with water | |
| place 40.0 g NaOH(s) in a flask and add 500 g of water |