Answer:
The principle component of organic molecules is carbon. Carbon atoms are able to bond with each other to form bigger and bigger structures. In addition, organic compounds frequently contain hydrogen, oxygen and nitrogen; phosphorus and sulfur are occasionally seen as well.
Explanation:
Answer:
![\%LiClO_3=90.4\%](https://tex.z-dn.net/?f=%5C%25LiClO_3%3D90.4%5C%25)
Explanation:
Hello!
In this case, since the undergoing chemical reaction is:
![LiClO_4\rightarrow LiCl+\frac{3}{2} O_2](https://tex.z-dn.net/?f=LiClO_4%5Crightarrow%20LiCl%2B%5Cfrac%7B3%7D%7B2%7D%20O_2)
It is widely known that when a gas given off from a reaction is collected over water, we can compute its pressure by minusing the total pressure 762 mmHg and the vapor pressure of water at the experiment's temperature (20 °C) in this case 17.5 mmHg as shown below:
![p_{O_2}=762mmHg-17.5mmHg=744.5mmHg*\frac{1atm}{760mmHg}=0.980atm](https://tex.z-dn.net/?f=p_%7BO_2%7D%3D762mmHg-17.5mmHg%3D744.5mmHg%2A%5Cfrac%7B1atm%7D%7B760mmHg%7D%3D0.980atm)
Next, by using the ideal gas equation we compute the yielded moles of oxygen considering the collected 313 mL (0.313 L):
![n_{O_2}=\frac{PV}{RT}=\frac{0.980atm*0.313L}{0.082\frac{atm*L}{mol*K}*293.15K}\\\\ n_{O_2}=0.0128molO_2](https://tex.z-dn.net/?f=n_%7BO_2%7D%3D%5Cfrac%7BPV%7D%7BRT%7D%3D%5Cfrac%7B0.980atm%2A0.313L%7D%7B0.082%5Cfrac%7Batm%2AL%7D%7Bmol%2AK%7D%2A293.15K%7D%5C%5C%5C%5C%20%20n_%7BO_2%7D%3D0.0128molO_2)
Now, via the 3/2:1 mole ratio between oxygen and lithium chlorate (molar mass = 90.39 g/mol), we compute the original mass of decomposed lithium chlorate as follows:
![m_{LiClO_3}=0.0128molO_2*\frac{1molLiClO_3}{3/2molO_2}*\frac{90.39gLiClO_3}{1molLiClO_3} \\\\m_{LiClO_3}=0.771gLiClO_3](https://tex.z-dn.net/?f=m_%7BLiClO_3%7D%3D0.0128molO_2%2A%5Cfrac%7B1molLiClO_3%7D%7B3%2F2molO_2%7D%2A%5Cfrac%7B90.39gLiClO_3%7D%7B1molLiClO_3%7D%20%20%5C%5C%5C%5Cm_%7BLiClO_3%7D%3D0.771gLiClO_3)
Now, the percentage is computed as shown below:
![\%LiClO_3=\frac{0.771g}{0.853g} *100\%\\\\\%LiClO_3=90.4\%](https://tex.z-dn.net/?f=%5C%25LiClO_3%3D%5Cfrac%7B0.771g%7D%7B0.853g%7D%20%2A100%5C%25%5C%5C%5C%5C%5C%25LiClO_3%3D90.4%5C%25)
Best regards!
The answer is higher.
You should know that the London dispersion force is the weakest intermolercular attractive force while the hydrogen bonds form a high attractive intermolecular force, so you have to expect that in molecules forming hydrogen bonds the molecules will be more attached to each other than in similar-sized molecules that interact by London dispersion forces only, which takes you to conclude that the melting point of the molecules forming hydrogen bonds will be higher.
The fact that CO2 is released from oceans due to further rise in temperature is an example of a negative feedback.
A negative feedback is one in which the process that produces the feedback is interrupted. That is, the process is stopped as a result of the feedback received.
In this case, CO2 which leads to global warming dissolves in the ocean which serves a large sink for the gas. However, as the increase in ocean temperatures causes decrease in solubility of CO2, more CO2 is released leading to further temperature rise. This is an example of a negative feedback loop.
Learn more: brainly.com/question/13440572
Although I’m not entirely sure what answer you’re looking for, I’d say because most scientific investigations require multiple trials of an experiment