I put ammonium chloride and I'm now really worried that that doesn't work... because I completely ignored the first part of the question... *bangs head on desk*

It won’t work because it said CREAM precipitate

Reply 89

in a fish bowl

Original post by ScienceWise2017

I did. It seemed a bit strange though

I got +2..

Reply 90

Samshapley

Original post by in a fish bowl

I got +2..

online data for magnesium hydroxide is +2.3
https://chem.libretexts.org/LibreTexts/Howard_University/General_Chemistry%3A_An_Atoms_First_Approach/Unit_4%3A__Thermochemistry/09%3A_Thermochemistry/Chapter_9.05%3A_Enthalpies_of_Solution

Reply 91

yusyus

Original post by in a fish bowl

I got +2..

yeah same - do you remember the compound? we could look it up.

either us or them went the wrong way (I don't remember paying attention to direction so it might be -2)

Reply 92

username3492722

yh i got negative entropies

Reply 93

in a fish bowl

Original post by yusyus

yeah same - do you remember the compound? we could look it up.

either us or them went the wrong way (I don't remember paying attention to direction so it might be -2)

MgCl2 maybe?

Reply 94

Samshapley

Original post by in a fish bowl

MgCl2 maybe?

It was +2 for Magnesium Hydroxide, I looked it up
https://chem.libretexts.org/LibreTexts/Howard_University/General_Chemistry%3A_An_Atoms_First_Approach/Unit_4%3A__Thermochemistry/09%3A_Thermochemistry/Chapter_9.05%3A_Enthalpies_of_Solution

Grade boundaries?

Original post by in a fish bowl

MgCl2 maybe?

hmm I think I remembered its Mg (OH)2 either way I can't find it

Reply 97

glue.stick

The 6 marker was asking about the lattice enthalpy values for MgI2 and LiCl. I think you had to mention that experimental values were more exothermic as polarisation occurs. Also the fact that MgI2 has a more exothermic value because it has a 2+ charge, and the iodide ion is bigger than chloride so the iodide ion is more easily polarised.

Reply 98

ScienceWise2017

Original post by yusyus

yeah same - do you remember the compound? we could look it up.

either us or them went the wrong way (I don't remember paying attention to direction so it might be -2)