Answer: 802.3 kilo Joules of energy represents 191.75 kilo Calorie of energy.
Explanation:
Energy released during combustion of one mole methane = 802.3 kilo Joules
If 1 kilo Joule = 0.239006 kilo Calorie
Then ,802.3 kilo joule will be = 802.30.239006 kilo Calorie
802.3 kilo joule = 191.75 kilo Calorie
Hence, the energy in kilo Calorie is 191.75 kilo Calorie.
Answer:
191.7497 Kilocalories
Explanation:
Step 1:
Data obtained from the question:
Energy released = 802.3KJ
Step 2:
Conversion of the energy released in kilojoules to kilocalories. This is illustrated below:
1 KJ = 0.239 kilocalorie
Therefore, 802.3 KJ = 802.3 x 0.239 = 191.7497 Kilocalories
From the calculation above, 802.3 KJ is equivalent to 191.7497 Kilocalories
B: atomic mass, electron number, and number of neutrons
C: electron number, number of neutrons, and chemical properties
D: atomic number, electron number, and chemical properties
Propanone is more soluble in water compared to propane mainly because propanone cannot hydrogen bond with themselves but can hydrogen bond with water molecules. One of the slightly positive hydrogen atoms in a water molecule can be sufficiently attracted to one of the lone pairs on the oxygen atom of propanone. In order for 3-hexanol to bond with water, the van der Waals forces must be broken and also the stronger hydrogen bonds of water molecules and it needs a great amount of energy.
Given:
2.5 mol O2
Required:
Grams of water
Solution:
2H2 + O2 -> 2H2O
Moles of H2O = (2.5 mol O2)(2moles H2O/1 mole O2) = 5 moles H2O
Molar mass of H2O = 18.02 g/mol
Mass of H2O = (5 moles H2O)( 18.02g/mol)
Mass of H2O =90.1g H2O