There are 30 inches in 2.5 just know that a foot is 12 inches so 12 times 2.5 is 30
D = m / V
0.844 = 0.549 / V
V = 0.549 / 0.844
V = 0.650 mL
Answer:
The answer to your question is ΔE = 0.752 kJ/mol
Explanation:
Data
mass of sample = 0.125 g
Heat capacity = 5.1 x 10² J/°C
ΔT = 11.8°C
ΔE = ?
Formula
ΔE = ΔQ + w
We suppose that work W = 0
ΔQ = mCΔT, then
ΔE = mCΔT
Substitution
ΔE = (0.125)(5.1 x 10²)(11.8)
Simplification
ΔE = (63.75)(11.8)
Result
ΔE = 752.25 J/mol or ΔE = 0.752 kJ/mol
