Textbook Question
Write the formula for each acid. a. phosphoric acid b. hydrocyanic acid c. chlorous acid
3. Chemical Reactions
Naming Acids
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What is the chemical formula for hydrophosphoric acid?
A
H3P
B
H3PO4
C
H3PO2
D
H3PO3
Verified step by step guidance1
Understand that hydrophosphoric acid is a binary acid, which means it consists of hydrogen and one other non-metal element, in this case, phosphorus.
Recall that binary acids are named using the prefix 'hydro-' followed by the root of the non-metal element and the suffix '-ic'.
Identify that the chemical formula for hydrophosphoric acid should only include hydrogen and phosphorus, without any oxygen atoms.
Recognize that the chemical formula for hydrophosphoric acid is H₃P, as it consists of three hydrogen atoms and one phosphorus atom.
Eliminate the other options (H₃PO₄, H₃PO₂, H₃PO₃) as they contain oxygen atoms, which are not present in hydrophosphoric acid.
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