Which oxide of vanadium contains the greatest mass percent of the metal? vo2v2o3vov2o5

Answer : The oxide of vanadium contains the greatest mass percent of the metal is,

Explanation: Given,

Molar mass of vanadium = 50.9 g/mol

Now we have to calculate the mass percent of metal in the following compounds.

For compound :

Molar mass of = 82.9 g/mole

Now put all the given values in this formula, we get:

Therefore, the mass percent of vanadium metal is 61.4 %

For compound :

Molar mass of = 149.8 g/mole

Now put all the given values in this formula, we get:

Therefore, the mass percent of vanadium metal is 33.9 %

For compound :

Molar mass of = 66.9 g/mole

Now put all the given values in this formula, we get:

Therefore, the mass percent of vanadium metal is 76.1 %

For compound :

Molar mass of = 181.8 g/mole

Now put all the given values in this formula, we get:

Therefore, the mass percent of vanadium metal is 27.9 %

Hence, the oxide of vanadium contains the greatest mass percent of the metal is,

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

catya that's not even a b or c