In the reaction below, hydrogen peroxide decomposes to water. mm h2o2 = 34.02 g/mol mm h2o = 18.02 g/mol mm o2 = 32 g/mol 2h2o2 → 2h2o + o2 if 14.3 moles of h2o2 is decomposed, how many grams of oxygen gas are produced? show all your work to get full credit.

228.8 g of O2 are produced

Work:

1) Write the give balanced chemical equation:

2H2O2 → 2H2O + O2

2) molar ratios

2 mol H2O2 : 2 mol H2O :1 mol O2

3) proportion with the unknown quantity number of moles of O2:

          x                      1 mol O2
=
 14.3 mol H2O2        2 mol H2O2

4) Solve for x:

x = 1 mol O2 * 14.3 mol H2O2 / 2 mol H2O2 = 7.15 mol O2

5) Use the molar mass of O2 to convert 7.15 mol O2 to grams

molar mass of O2 = 2 * atomic mass of O = 2 * 16.00 g/mol = 32.00 g/mol

molar mass = mass in grams / number of moles

=> mass = molar mass * number of moles

mass of O2 =  32.00 g / mol * 7.15 mol = 228.8 g

228.8 g

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?