Question

1. molar mass 10 pts possible

find the molar mass of c₂h₅cooh.
answer in units of g/mol.
your response...

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Explanation:

Step1: Identify atomic masses

Carbon (C): $12.01\ g/mol$, Hydrogen (H): $1.008\ g/mol$, Oxygen (O): $16.00\ g/mol$.

Step2: Count atoms in $\ce{C2H5COOH}$

• C: $2 + 1 = 3$ atoms (from $\ce{C2}$ and $\ce{COOH}$)
• H: $5 + 1 = 6$ atoms (from $\ce{C2H5}$ and $\ce{COOH}$)
• O: $2$ atoms (from $\ce{COOH}$)

Step3: Calculate molar mass

Molar mass = (3×12.01) + (6×1.008) + (2×16.00)
= $36.03 + 6.048 + 32.00$
= $74.078\ g/mol$

Answer:

$74.08$ (rounded to two decimal places, or $74.078$)