# Does this freezing point depression problem make sense?

The solvent is water. Pure water has a freezing point of 0 degrees Celsius. How come, in this problem, the addition of solute results in an elevation of the freezing point from 0 to 0.46 degrees C? Is this possible? Or is this question just flawed?

• If you'd see "Buffalo" written on an elephant's cage in a zoo, would you suspect a mistake, or suppose that you didn't know something? – Ivan Neretin Feb 24 '17 at 15:27
• I would assume that this is supposed to be $-0.46\ ^{\circ}\mathrm{C}$... – Zhe Feb 24 '17 at 16:06
• My thought as well. – Ivan Neretin Feb 24 '17 at 16:07
• Adding deuterium oxide would raise the freezing point. – MaxW Feb 24 '17 at 16:47
• I see no problem here. It's not a salt and it doesn't lower melting point but on contrary... – Mithoron Feb 24 '17 at 16:48