Answer:
The pressure inside the chamber is 0.132 atm
Explanation:
Step 1: Data given
The initial volume = 0.027 L
The initial pressure = 1.0 atm
The volume changes to 0.205 L
Step 2: Calculate the pressure
P1*V1 = P2*V2
⇒with P1 = the initial pressure = 1.0 atm
⇒with V1 = the initial volume = 0.027 L
⇒with P2 = the changed pressure = TO BE DETERMINED
⇒with V2 = the changed volume = 0.205 L
1.0 atm *0.027 L = P2*0.205 L
P2 = 0.027/0.205
P2 = 0.132 atm
The pressure inside the chamber is 0.132 atm
Answer:
LiCl = 0.492 m
Explanation:
Molal concentration is the one that indicates the moles of solute that are contained in 1kg of solvent.
Our solute is lithium chloride, LiCl.
Our solvent is distilled water.
We do not have the mass of water, but we know the volume, so we should apply density to determine mass.
Density = mass / volume
Density . volume = mass
1 g/mL . 19.7 mL = 19.7 g
We convert g to kg → 19.7 g . 1 kg / 1000g = 0.0197 kg
Let's determine the moles of LiCl
0.411 g . 1 mol / 42.394 g = 9.69×10⁻³ moles
Molal concentration (m) = 9.69×10⁻³ mol / 0.0197 kg → 0.492 m
Compounds are not possible to be separated by physical means
The answer is hemoglobin. The substance which allows the red blood cells to carry oxygen and iron is called hemoglobin. It is a protein containing iron. Its main function is to carry oxygen to all the parts of the body.
Magnetism, or more specifically electromagnetic repulsion
