Chemistry hw help

Question

Dioxygen difluoride (FOOF) is such a strong oxidizing agent that it makes water ice burn (explode, actually), probably according to the balanced equation

2 FOOF + 2 H2O  --------> 4 HF + 3 O2

How many grams of FOOF are necessary to burn 3.0 g of ice?

Answer 1

2F₂O₂ + 2H₂O ==> 4HF + 3O₂ ... balanced equation

The ice is actually the H₂O in the reactant side of the equation, so the question is actually asking "how many grams of FOOF are necessary to burn 3.0 g of water"?

Using the balanced equation and dimensional analysis, we can approach this problem as follows:

3.0 g H₂O x 1 mol H₂O/18 g x 2 mol FOOF/2 mol H₂O x 70.0 g FOOF/mol = 11.7 g FOOF