Question

How many moles of citric acid (ch3cooh) do you have if you have 6.2 g of it?

a. 48.03 g
b. 0.06 moles
c. 0.1 moles
d. 0.3 moles

Answer 1

To find the number of moles of CH3COOH in 6.2 g, divide the mass by the molar mass (60.05 g/mol), resulting in approximately 0.10 moles.

Step-by-step explanation:

To determine how many moles of citric acid (which is actually C6H8O7, but we'll assume the typo meant CH3COOH, which is acetic acid) are present in 6.2 grams, you first need to know the molar mass of CH3COOH. The molar mass is approximately 60.05 g/mol. By dividing the mass of the substance by its molar mass, you can find the number of moles.

Using the equation:
Number of Moles = Mass / Molar Mass

We plug in the values:

Number of Moles = 6.2 g / 60.05 g/mol = 0.103 moles

The answer, rounded to two decimal places, is 0.10 moles of CH3COOH (acetic acid), which corresponds to answer option c.