How many mols (NH4)2CO3 do you have? That's M x L = ? mols (NH4)2CO3.
For each mol (NH4)2CO3 you have 2 NH4^+ and 1 CO3^2-. The sum is the total.
How many Moles of solute particles are present in 1 mL of aqueous 0.070 M (NH4)2CO3?
____ mol of Particles
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