What mass of propane (C3H8) must be burned in a barbecue grill to release 4560 kJ of heat?

The answer is "".

Explanation:

Write a balanced thermochemical formula for both the combustion with one mole of

Calculating the molar mass of .  

1) Start with both the energy released.  

2) Just use molar enthalpy of  as just a balanced equation to transfer kilojoules to birthmarks of .  

3) It use molarity of   as a balanced equation to transfer caterpillars of  to ounces of .

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles