Combustion equation of n-hexane:
2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O
a)
Assuming we have 100 moles of air,
Oxygen = 20.9 moles
n-hexane required = 20.9/19 x 2
= 2.2 moles
LFL = Half of stoichometric amount = 2.2 / 2 = 1.1
LFL n-hexane = 1.1%
b)
1.1 volume percent required for LFL
1.1% x 1
= 0.0011 m³ of n-hexane required
Bicarbonate, sodium, potassium
are regulated by the kidneys.
C, im pretty sure if im wrong my bad
Answer:
A) the temperature of the water will increase.
Explanation:
Consider, first, the dissolution of anhydrous calcium chloride, CaCl2 in water. CaCl2 is a very water soluble ionic compound that, in solution, dissociates into the component ions, Ca2 + and Cl-, which interact strongly with water molecules.
The thermochemical equation that represents the process of dissolution of CaCl2 (s) indicates that it is a strongly exothermic process:
CaCl2(s) --> Ca+2(aq) + 2Cl- (aq) ΔH = -82.8 kJ
Therefore, dissolving CaCl2 in water will produce the release of energy in the form of heat (82.8 kJ per mole of dissolved CaCl2)
