How many moles of oxygen (o2) are present in 33.6 l of the gas at 1 atm and 0°c?

1.500 moles of O₂

Explanation:

At the pressure of 1 atm, the gas can be considered an ideal gas, so we can use the ideal gas equation:

PV = nRT

Where P is the pressure in atm, V is the gas volume in L, n is the number of moles, R is the gas constant = 0.082 atm.L/mol.K, and T is the temperature in K, so T = 0ºC + 273.15 = 273.15 K.

1x33.6 = nx0.082x273.15

22.3893n = 33.6

n = 1.500 moles of O₂

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.