NH3 is a weak base ( b=1.8×10−5 ) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.012 M in NH4Cl at 25 °C?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

What is the molar mass of ca(cio4)2