<u>Answer:</u> The molar mass of protein A is 3023.41 g/mol.
<u>Explanation:</u>
To calculate the osmotic pressure, we use the formula:
OR
.....(1)
Where,
= osmotic pressure = 0.285 atm
i = 1
Given mass of protien (solute) = 54.1 mg = 0.0541 g (Conversion factor: 1 g = 1000 mg)
Volume of solution = 1.5 mL
R = Gas constant = 0.0821 L.atm/mol.K
T = temperature =
Plugging values in equation 1:
Hence, the molar mass of protein A is 3023.41 g/mol.
Answer:
I
Explanation:
I dont know, man, that looks hard man. I wish i could help you right now but i got trampled over by a group of screaming goats. i think i got a concussion man, I canyt think straight.
Answer:
a vector with speed and strenght
Explanation:
The sensitivity of electronic balance is 0.3 mg
Converting 0.3 mg to g:
g
So, the mass of a substance weighed on the balance can be measured accurately up to four decimal places.
Given the mass of sample is 1.2300 g. The number of significant figures in the measurement will be 5 because the balance can measure the mass of a sample accurately up to four decimal points, all the digits in the measurement will be significant.
<h3><u>Compare and contrast between bonds and molecules of polar and non-polar:</u></h3>
- Non-polar covalent bonds are a type of covalent bond in which a pair of electrons is shared with each other between two atoms.
- Polar covalent bond is a type of covalent bond in which pair of electrons are not equally shared between two atoms. We can also say bonds are polar when one element in a compound is more electronegative than the other.
- The bond shared in the compound of carbon dioxide between carbon and oxygen atoms is non-polar covalent bond whereas the shared in the compound of water between hydrogen and oxygen atom is polar-covalent bond.
- Polar molecules are those molecules where there is an “electronegativity difference between the bonded atoms”.
- For eg: Water - , Ammonia - , Sulfur dioxide - , Hydrogen sulfide - , Ethanol - , etc.
- Non-polar molecules are those molecules sharing equal electrons between “atoms of a diatomic molecule” or large molecule cancel each other.
- For eg: Carbon dioxide - , Benzene - , Carbon tetrachloride - , Methane - , Ethylene - , etc.