What is the pOH of a solution that has a hydronium ion concentration [H3O+] of 8.26 x 10–5 M?

1.20 x 10 ^-10

4.08

-9.92

9.92

-1.20 x 10 ^-10

-4.08

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa