The heat of vaporization for ethanol is 0.826 kJ/j. Calculate the heat energy in joules required to boil 45.65g of ethanol
Answers
Answer:
ethanol is already at the ethanol's boiling point: (0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J.
Missing: 45.65 | Must include: 45.65
Explanation:
Answer:
Explanation:
Supposing the temperature of the ethanol is already at the ethanol's boiling point:
(0.826 kJ/g) x (70.05 g) = 57.8613 kJ = 5.79 x 10^4 J
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Answers
or eat. But it's important for getting the right amount of air into the lungs.
Which answer choice BEST supports the idea that intubation is a necessary part of ventilator treatment?
(A) But when the lungs fill up with fluid or become highly inflamed, the lungs can't expand enough, Lutchen
says.
(B) This actively pushes air into the lungs and can keep the levels of oxygen and carbon dioxide in the
blood close to normal.
(C) If the ventilator simply blew into a person's mouth, the air might expand their cheeks or leak out of their
noes instead of going into the lungs, he says.
(D) When the lungs are damaged, the millions of balloons take in oxygen and release carbon dioxide
differently than when they are healthy, he says.
Answers
Answer:
It may be required when respiratory distress or airway integrity cannot be achieved or maintained for any reason.
(B) This actively pushes air into the lungs and can keep the levels of oxygen and carbon dioxide in the
blood close to normal.
Explanation:
Answers
This problem can be solved using the Combined Gas Law. The formula for it is
Let's go ahead and plug in the known values. Since pressure remains the same, it does not matter what value we plug in, so let's assume 1 atm for both sides.
Now, we just need to solve for the unknown. Start by simplifying the left side and right numerator.
0.001 =
Multiply both sides by x.
0.001x = 0.140
Divide both sides by 0.001.
x = 140 K
Convert that to Celsius (K = C + 273)
140 = C + 273
C = -133
So, the volume of your gas will be 0.140 L at -133° C.
of each other.
Answers
Answer: isotopes
Explanation: Isotopes are atoms of the same element having the same atomic number but different atomic masses. Atomic number of an element is the number of protons contained in the nucleus of an atom. Atomic mass is the sum of the protons and neutrons in the nucleus of an atom.
The difference in the atomic masses is due to the number of neutrons in the atoms. This isotopes have the same number of protons but different number of neutrons. The phenomenon whereby atoms of the same element have the same atomic number but different mass number is called isotopy.
Answer: The direct answer is that they are Isotopes of one another.
Explanation:
A.
cytoplasm
B.
flagella
C.
pili
D.
plasma membrane
E.
ribosomes