Answer:
The molar mass of the protein is 12982.8 g/mol.
Explanation:
The osmptic pressure is given by:
π=MRT
Where,
M: is molarity of the solution
R: the ideal gas constant (0.0821 L·atm/mol·K)
T: the temperature in kelvins
Hence, we look for molarity:
= =5.584×10⁻³mol/l
As we have 2 ml of solution, we can get the moles quantity:
Moles of protein: 5.584×10⁻³
×2ml=1.117×10⁻⁵mol
Finally, the moles quantity is the division between the mass of the protein and the molar mass of the protein, so:
Moles=Mass/Molar mass
Molar mass= Mass/Moles=
=12982.8 g/mol
Answer: 76.8 mole
Explanation:
- Firstly, the balanced equation of reacting benzene with excess oxygen is:
2C6H6 + 15O2 → 6H2O + 12CO2
- It is clear that every two moles of benzene react with 15 mole of oxygen to produce 6 moles of water and 12 mole of CO2
- Which means that 2 moles of benzene give 12 moles of CO2
- So, n(C6H6)/2 = n(CO2)/12
- which give n(C6H6) = n(CO2)/6
- n(CO2) = n(C6H6) x 6 = 12.8 x 6 = 76.8 mole
The nuclear disintegration series of 238-U is the source of radon-222 in soil.
<h3>What is nuclear disintegration ?</h3>
- The process of nuclear disintegration is how an unstable atomic nucleus loses energy through radiation.
- A substance that has unstable nuclei is regarded as radioactive.
- Alpha, beta, and gamma decay are three of the most prevalent types of decay, and they all entail the emission of one or more particles.
- Ionizing radiation offers a health concern by destroying tissue and the DNA in genes because it can damage the atoms in living things.
- Alpha particles may be present in the ionising radiation that is released.
- As one atom transforms into another, radioactive decay involves the emission of a particle and/or energy.
- Helium ions are released from an atom's nucleus during alpha decay. A neutron in the nucleus is converted to a proton and electron during beta decay.
Learn more about radioactive decay here:
brainly.com/question/1770619
#SPJ4
Answer:
See explanation below
Explanation:
Water has the anomality of having the solid less dense than the liquid state. The reason for this is that the hydrogen bonds in the solid ice forces the molecule to occupy more room to properly have the stability afforded by the hydrogen bonds. That is the reason why ice floats on water.
The other interesting consequence of this anomality is that the slope of the solid/liquid phase boundary is negative since at higher pressures the ice can be changed to its liquid phase which can be seen from the negative slope of the solid/liquid boundary.
A) True
B) False
C) False
D) True
E) False
F) True close up to 4 ºC when the water molecules start to behave like other liquids, that is the density of the liquid decreases.
G) True
H) True ( repeated question)
