Answer:Aspirin is synthesized by esterification reaction of salicylic acid and acetic acid in the presence of phosphoric acid. Phosphoric acid acts as a catalyst and fastens the speed of reaction. It protonates the carboxyl group of salicylic acid and favors the esterficiation reaction.
Explanation:
A gas with more kinetic energy exerts more pressure.
Explanation:
A gas that has more kinetic energy has faster particles movement. When these molecules move at a faster speed, they exert more pressure on the surface with which they collide.
Here, molecular speed of gas that exerts 1.0 atm of pressure is less than that which exerts 1.5 atm of pressure.
Kinetic molecular theory states that molecules in a gas are continuously in motion show elastic collisions.
The pressure exerted by a gas is directly proportional to the mean-square velocity of gas molecules.
Answer: ORGANIC ACIDS
Explanation:
CAM PLANTS CARBOXYLATE ORGANICS ACIDS through the addition of CO2 to PEP Carboxylase( a phosphoenolpyruvate carboxylase enzyme present in the mesophyll cells of the cytoplasm in a green plant) to produce Oxaloacetate (organic compound).
CO2 + PEP ⇒ C4H4O5 (oxaloacetate)
Oxaloacetate is then converted to a similar molecule, Malate (C4H6O5, another form of organic compound) that can be transported in to the bundle-sheath cells. Malate enters the plasmodesmata and releases the CO2. The CO2 then fixed by rubisco and made into sugars via the Calvin cycle.
Answer:
c. 15 g Kr
Explanation:
The amount of a gas (Moles) is directely proportional to its pressure. That means the higher amount of moles, the highest pressure and vice versa.
Using molar mass of the compounds (Ne=20.2g/mol, Ar = 39.9g/mol, Kr = 83.8g/mol, CO₂ = 44 g/mol and F₂ = 38.0g/mol), moles of 15.0g of each gas are:
Ne = 15g ₓ (1mol / 20.2g) = <em>0.74 moles of Ne</em>
Ar = 15g ₓ (1mol / 39.9g) = <em>0.38 moles of Ar</em>
Kr = 15g ₓ (1mol / 83.8g) = <em>0.18 moles of Kr</em>
CO₂ = 15g ₓ (1mol / 44g) = <em>0.34 moles of CO₂</em>
F₂ = 15g ₓ (1mol / 38g) = <em>0.39 moles of F₂</em>
<h3>As 15g of Kr contains the less quantity of moles, this sample will con have the lowest pressure</h3>