Answer:
The osmotic pressure of the solution is 0,60 atm
Explanation:
This is the formula for osmotic pressure.
π = n . R . T . i
where n is the molar concentration of solute (mol/L), R is the ideal gas constant, and T is the temperature in Kelvins. The i means the degree of dissociation of the solute, in this case it does not clarify it so we assume that it is a non-volatile solute, therefore the i is worth 1 .
1 dm³ = 1 L
So we have to get the moles.
Mass/ Molecular mass = Moles
69,7 g / 2790 g/m = 0,025 moles
T° in K = T° in °C + 273 ---> 20 + 273 = 293
π = 0,025 moles/L . 0,082 L.atm/K.mol . 293K . 1
π = 0,60 atm
Answer: moles
Explanation: Boyle's law:
Boyle's law stated that volume and pressure are inversely proportional to each others by keeping the number of moles and temperature constant.
Mathematical expression:
P₁V₁ = P₂V₂ (n and T are constant)
Charles's law:
Charles's law stated that temperature and volume are directly related related to each others by keeping number of moles and pressure constant.
Mathematical expression:
V₁/T₁ = V₂ /T₂ (n and P are constant)
Gay-Lussac's law:
This law stated that pressure of gas is directly related to its temperature by keeping the number of moles and volume constant.
Mathematical expression:
P₁/T₁ = P₂ /T₂ (n and V are constant)
The surface area would be 25cm, while the vloume would be
or length×width×height
125cm cubed
The arrow is between 4.0 and 5.0, so the measurement is at least 4.0. The arrow is between the third and fourth small tick marks, so it’s at least 0.3. We will have to estimate the last place. It looks like about one-third of the way across the space, so let us estimate the hundredths place as 3. The symbol psi stands for “pounds per square inch” and is a unit of pressure, like air in a tire)
Answer:
A substance that is dissolved in a solution is called a solute
Explanation:
Solute is the substance which is dissolved
Solvent is where you dissolve the solute (usually liquids)
Solution = Solute + solvent