High School

What is the mass of 0.75 moles of vanadium (I) oxide ([tex]V_2O[/tex])?

a. 66.9 grams
b. 117.9 grams
c. 88.4 grams
d. 50.2 grams

Answer :

Final answer:

The mass of 0.75 moles of vanadium (i) oxide (V₂O) is approximately 50.205 grams.

Explanation:

To calculate the mass of 0.75 moles of vanadium (i) oxide (V₂O), we need to find the molar mass of the compound and then multiply it by the number of moles. The molar mass of V₂O is calculated as follows:

Molar mass of V: 50.94 g/mol

Molar mass of O: 16.00 g/mol

Add the molar masses of V and O: 50.94 g/mol + 16.00 g/mol = 66.94 g/mol

Now, multiply the molar mass by the number of moles:

0.75 moles * 66.94 g/mol = 50.205 g

So, the mass of 0.75 moles of vanadium (i) oxide is approximately 50.205 grams.