Is there enough phosphoric acid weighing 196g to neutralize a solution containing potassium

Is there enough phosphoric acid weighing 196g to neutralize a solution containing potassium hydroxide with a chemical amount of 3m?

Given:
m (H3PO4) = 196 g
n (KOH) = 3 mol

To find:
Will there be enough H3PO4 -?

Decision:
1) Write the equation of a chemical reaction:
H3PO4 + 3KOH => K3PO4 + 3H2O;
2) Calculate the molar mass of phosphoric acid:
M (H3PO4) = Mr (H3PO4) = Ar (H) * N (H) + Ar (N) * N (N) + Ar (O) * N (O) = 1 * 3 + 31 * 1 + 16 * 4 = 98 g / mol;
3) Calculate the amount of phosphoric acid substance:
n (H3PO4) = m (H3PO4) / M (H3PO4) = 196/98 = 2 mol;
4) Compare the amount of H3PO4 and KOH substance:
n (H3PO4)> n (KOH).

Answer: H3PO4 is enough.



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