Multiple Choice
Write the balanced reaction for the formation of phosphoric acid from tetraphosphorus decoxide with water.
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Multiple Choice
Name the oxyacid created from the reaction between phosphorus trichloride and 3 moles of water.
A
hydrophorous acid
B
phoric acid
C
phosphorous acid
D
phosphoric acid
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Verified step by step guidance1
Identify the reactants involved in the reaction: phosphorus trichloride (PCl3) and water (H2O).
Understand that phosphorus trichloride reacts with water to form an oxyacid. The general reaction is: PCl3 + 3H2O → H3PO3 + 3HCl.
Recognize that the product H3PO3 is phosphorous acid, an oxyacid formed from the reaction.
Note that phosphorous acid is different from phosphoric acid (H3PO4), which is formed from phosphorus pentoxide (P2O5) reacting with water.
Conclude that the correct name for the oxyacid formed in this reaction is phosphorous acid, based on the chemical formula H3PO3.
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