Answer:
1569 torr
Explanation:
Assuming ideal behaviour and constant temperature, we can solve this problem by using <em>Boyle's law</em>, which states:
Where in this case:
We <u>input the data given by the problem</u>:
- 202 mL * 505 torr = 65.0 mL * P₂
And <u>solve for P₂</u>:
Answer:
1) HNO3/H2SO4, 2) CH3CH2CH2Cl/AlCl3
Explanation:
Benzene is a stable aromatic compound hence it undergoes substitution rather than addition reaction.
When benzene undergoes substitution reaction, the substituent introduced into the ring determines the position of the incoming electrophile.
If I want to synthesize m-nitropropylbenzene, I will first carry out the nitration of benzene using HNO3/H2SO4 since the -nitro group is a meta director. This is now followed by Friedel Craft's alkykation using CH3CH2CH2Cl/AlCl3.
Answer:
177.993 MeV
Explanation:
Nuclear fission refers to a process where a nucleus is broken into smaller ones.
m(Am) = 242.0595490 u, m(Sr) = 89.9077387 u, m(La) = 148.934733 u and m(n) = 1.008665 u. To find the mass of X, we sum up the masses on both side and subtract them according to the equation given
242 + X = 90 +149 + 4
X = 243 - 242 = 1
so X is a neutron
next we calculate the Δm ( change in mass)
Δm = mass reactant - mass of product
(242.0595490 + 1.008665 ) - ( 89.9077387 + 148.934733 + 4 (1.008665))
= 243.068214 - 242.8771317 = 0.1910823 u
using the formula
E = (Δm) c² = 0.1910823 u × c² × 
× 
= 177.993 MeV
The main function of the right side of your heart is to collect blood from the body and pump it to the lungs.
Answer:
B. Geological Events and Lifeforms
Explanation:
The Earth's Geological time scale is mostly based on Geological Events and Lifeforms.
The Geological time scale provides a division of events on the earth into several time frames.
Each of the time units are based on events through the Earth's history and evolution of life.
The events are often recorded in rock strata and also as fossils which are the preserved remains of organisms.
