Tell how many moles of each element are in the following amounts of each compund: a. 3 moles NH3
b. 0.25 moles H2O
c. 5.0 moles H2SO4
d. 0.75 moles Ca(NO3)2

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

What was bohr’s contribution to the planetary model