Predict the solubility of the following substances in water.

a. nano3:
b. agbr:
c. nh4oh:
d. ag2co3:
e. nh4br:
f. baso4:
g. pb(oh)2:
h. pbco3:

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.