What is the molality if 82grams of CaNO4 is dissolved in 2000grams of Water?

Answer 1

Check your post. I'm not familiar with anything like CaNO4.
However, this is what you do.
Convert 82 grams to moles. moles = grams/molar mass.
Then mols/2 = molality. The 2 is for 2 kg.

Answer 2

Oh ok thank you i was confused, i mixed molarity with moles i got them backwards. Thank you DrBob222