# Problem: Vanadium forms four different oxides in which the percent by mass of vanadium is respectively 76 % , 68 % , 61 % , and 56 % .Find the formula of the fourth oxide.

###### FREE Expert Solution

Step 1 Assuming 100 g, V is 56 g and O is 44 g

= 1.10 mol V

= 2.75 mol O

Step 2 Divide each mol by the least moles

###### Problem Details

Vanadium forms four different oxides in which the percent by mass of vanadium is respectively 76 % , 68 % , 61 % , and 56 % .

Find the formula of the fourth oxide.