Answer:
ΔH = - 11758.6 J/mol = - 11.76 kJ/mol
Explanation:
Step 1: Data given
Mass of arsenic tribromide = 54.7 grams
MAss of water = 300.0 grams
Temperature of water = 22.50 °C
Final temperature of water = 24.13 °C
Step 2: Calculate ΔH
Q= m*c*ΔT
⇒with m =the mass of water = 300.0 grams
⇒with c= the specific heat of water = 4.184 J/g°C
⇒with ΔT = the change in temperature of water = T2 - T2 = 24.13 - 22.50 = 1.63 °C
Q = 300 * 4.184 * 1.63
Q = 2046 J
Step 3: Calculate moles AsBr3
Moles AsBr3 = mass / molar mass
Moles AsBr3 = 54.7 grams / 314.634 g/mol
Moles AsBr3 = 0.174 moles
Step 4: Calculate ΔH
ΔH = -Q/moles
ΔH = -2046 J / 0.174 moles
ΔH = - 11758.6 J/mol = - 11.76 kJ/mol
A kilometer is equal to 1000 meters and a meter is equal to 100 centimeters, so:
1 km = 100000 cm
1 cm = 0,00001 km
Just multiply or divide it by 100000.
Answer:
The pyruvate dehydrogenase kinase enzyme activity would increase, resulting in an inhibition of pyruvate dehydrogenase activity. ... An in vitro study shows that isocitrate dehydrogenase is activated in the citrate cycle.
Explanation:
Answer:
2 reactants 2 products.
this is a balanced chemical equation. That means the number of chlorine before the arrow will be the same after the arrow