Examples of specific enzymes
Lipases – a group of enzymes that help digest fats in the gut.
Amylase – helps change starches into sugars. ...
Maltase – also found in saliva; breaks the sugar maltose into glucose. ...
Trypsin – found in the small intestine, breaks proteins down into amino acids.
Neptune has the strongest winds in the solar system. with speeds up to more than 1,200 mph (2,000kph). those speeds are close to the top speed of U.S. Navy F/A-18 Hornet fighter jet !
120 x 1.05 = 126 gazelles next year.
If you times it by 105% then you get the answer of adding 5% on.
Answer:
18 moles of H₂.
Explanation:
The balanced equation for the reaction is given below:
2Al + 6HCl –> 2AlCl₃ + 3H₂
From the balanced equation above,
2 moles of Al reacted to produce 3 moles of H₂.
Finally, we shall determine the number of mole of H₂ produced by the reaction of 12 moles of Al. This can be obtained as follow:
From the balanced equation above,
2 moles of Al reacted to produce 3 moles of H₂.
Therefore, 12 moles of Al will react to produce = (12 × 3)/2 = 18 moles of H₂.
Thus, 18 moles of H₂ were obtained from the reaction.
Answer:
Final temperature = 48.6867 °C
Explanation:
The expression for the heat of combustion in bomb calorimeter is:
<u>ΔH = -C ΔT
</u>
where,
ΔH is the enthalpy of the reaction
C is the heat capacity of the bomb calorimeter
ΔT is the temperature change
Given in the question:
ΔH°rxn = -1.28 x 10⁴ kJ
From the balanced reaction, 4 moles of aniline reacting with oxygen. Thus, enthalpy change of the reaction in kJ/mol is:
<u>ΔH = -12800 kJ/4 = -3200kJ/mole
</u>
Given:
Mass of aniline combusted = 6.55 g
Molar mass of aniline = 93.13 g/mol
Thus moles of aniline = 6.55 / 93.13 moles = 0.0703 moles
The total heat released from 0.0703 moles of aniline is
<u>ΔH = -3200kJ/mole x 0.0703 moles = -224.96 kJ
</u>
Given: Heat capacity of calorimeter is 14.25 kJ/°C
T₁ (initial) = 32.9°C
T₂ (final) = ?
From the above formula:
-224.96 kJ = -14.25kJ/°C (T₂ - 32.9)
Solving for T₂ , we get:
<u>T₂ = 48.6867 °C</u>
