The stoichiometry of the reaction gives the molar ratio in which the reactants react with each other and the ratio in which products are formed.
The coefficients of the reactants in the reaction follow the stoichiometry
the balanced chemical equation for the reaction is as follows;
2C₃H₆(g) + 9O₂(g) ---> 6CO₂(g) + 6H₂O(l)
The ratio of buffer C₂H₃O₂ /HC₂H₃O₂ must you use are1:0.199 or 10:2
the ratio of buffer C₂H₃O₂ /HC₂H₃O₂ can be calculate using the Henderson-Hasselbalch Equation which relates the pH to the measure of acidity pKa. The equation is given as:
pH = pKa + log ([base]/[acid]
Where,
[base] = concentration of C₂H₃O₂in molarity or moles
[acid] = concentration of HC₂H₃O₂ in molarity or moles
For the sake of easy calculation, allow us to assume that:
[base] =1
[acid] = x
Therefore using equation 1,
5.44 = 4.74 + log (1 / x)
log [base / acid] = 0.7
1 / x = 5.0118
x = 0.199
The required ratio of buffer C₂H₃O₂ /HC₂H₃O₂ is 1:0.199 or 10:2
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Answer: 1.005919176541433
Explanation:
Rods and cones are both photoreceptors located in the retina of the human eye. A photoreceptor is highly specialized type of nerve and in this case is used to detect and monitor vision.
A rod is called a rod because under close examination the shape is actually has a cylindrical shape like a rod or tube. Within the the rod, there are thousands of optic disks, which contain proteins that absorb light and eventually transmit this to the brain. Rhodopsin is the protein which is contained within these optic disks.
A cone has similar features to a rod, in that is also is composed of layers of optic disks that have protein. Similar to its name, the cone photoreceptor is in the shape of its namesake, a cone, or conical in shape. Photpsin is the protieng which is contained with this optic disks.
The processes are very similar in both rods and cones for their basic process of interacting with light waves, in that the light enters and is absorbed by the particular proteins of the rod or cone and then that information is coordinated and sent to the brain.
A huge contrast is related to the number of each of rods (approximately 120 million) to cones (approximately 6 million) in an average retina. Also the concentration and location of the rods and cones is very different. The rods are found along the top and bottom parts of the retina, called the periphery, whereas the cones are found mostly concentrated in and around a dimple called the fovea, in approximately the middle to upper-middle portion of the retina.
Rods do not have the ability to detect color, but are hyper-sensitive to light and as such are a 1,000 times more sensitive to light than cones. Rods are really good at telling us that light is there. Rods also have a very slow time to recover or be able to adapt to new light circumstances.
Cones have a fast recovery time and are also divided into three different types, red, green and blue, in an approximate ratio of 6:3:1
The scvientist that heklped john dalton was democritus