The formula for finding the mole is:
mm = m / n
Molar mass = mass / number of mole
This can be changed to:
n = m / mm
For example:
You have a kilogram of carbon, how many moles are this?
Using the Periodic Table you will find that the molar mass is 12(.01078) g/mol
The mass is 1000 gram.
so: 1000 g / 12 g/mol = 83.33 mole
There is 0.239 moles per every kilojoules. Kilojoules refers to a measure of energy and can also refer to the energy value of food.
Divide by the amount of moles it took to create the amount of joules, and divide by 1000.
40.79 H2O kj/moles x 1 moles/18 grams= 2.266/1000=0.002266 joules/grams
1 kWh is a kilowatt-hour, in other words 1000 watts for one hour. That is 1000 Joules per second, for 3600 seconds. So 1 kWh is 3,600,000 Joules, or 3600 kJ.
delta H = (delta Ho f products) - (delta Ho f reactants) = ((1 mole CaO)(-636.6 kJ/mole) + (1 mole CO2)(-393.5 kJ/mole)) - (1 mole CaCO3)(-1206.9 kJ/mole) = -1030.1 kJ - (-1206.9 kJ) = +176.8 kJ This reaction is highly endothermic (positive delta H) at 25 C.
3054 kJ/mole
Zinc sulfate is one of the three hydrates, and was historically known as white vitriol. It has the specific heat of 120 Joules per mole per degree Kelvin.
2870 KJ (per mole)
40.79 H2O kj/moles x 1 moles/18 grams= 2.266/1000=0.002266 joules/grams
1.11 atto Joules.
Depends on the concentration of the solution. Most widely used concentration, i.e. 48% has Cp ~ 3.331 kJ/Kg.K
It is 61 kcal per mole. This is 255.224 kJ per mole.
The conversion is 4.2 Joules per calorie, so 4 kcal is 16.8 kJ.
-55.90 kJ
Kilojoules per mole. kj/mol
40.79 H2O kj/moles x 1 moles/18 grams= 2.266/1000=0.002266 joules/grams
631 kJ mol-1
1 kWh is a kilowatt-hour, in other words 1000 watts for one hour. That is 1000 Joules per second, for 3600 seconds. So 1 kWh is 3,600,000 Joules, or 3600 kJ.
one thousand joules equals a KJ