Question

question 9 (1 point) how many moles are 0.5896 g of salicylic acid? report answer with correct significant figures. do not include units in your response. do not use scientific notation. your answer: answer

Explanation:

Step1: Determine the molar mass of salicylic acid ($C_7H_6O_3$)

The molar mass of $C$ is $12.01\ g/mol$, of $H$ is $1.008\ g/mol$, and of $O$ is $16.00\ g/mol$.
For $C_7H_6O_3$: $M=(7\times12.01)+(6\times1.008)+(3\times16.00)=84.07 + 6.048+48.00=138.118\ g/mol$

Step2: Calculate the number of moles

Use the formula $n=\frac{m}{M}$, where $m = 0.5896\ g$ and $M = 138.118\ g/mol$
$n=\frac{0.5896}{138.118}\approx0.00427$

Answer:

0.00427