Is owl a decomposer consumer or a producer?

Lysozyme extracted from chicken egg white has a molar mass of 13,930 g mo1-1. Exactly 0.1 g of this protein is dissolved in 50 g

Natalija [7]

Answer:

Relative lowering in vapor pressure of solution is 23.7599 mmHg.

Depression in freezing point of the solution is 0.0002667 K.

Elevation in boiling point of the solution is 0.0000745 K.

Osmotic pressure of the solution is 0.0035 atm.

Explanation:

1) Relative lowering in vapor pressure of solution containing non volatile solute is equal to the mole fraction of the solute.

$\frac{p^o-p_s}{p^o}=\frac{n_2}{n_1+n_2}$

$p^o$ = Vapor Pressure of the pure solvent

$p_s$ = Vapor Pressure of the solution

$n_2$ moles of solute

$n_1$ = moles of solvent

Given; $p^o=23.76 mmHg ,p_s=?$

Moles of Lysozyme = $n_2=\frac{0.1 g}{13,930 g/mol}=7.17\times 10^{-6} mol$

Moles of water = $n_1=\frac{50 g}{18 g/mol}=3.333 mol$

$\frac{23.76 mmHg-p_s}{23.76 mmHg}=\frac{7.17\times 10^{-6} mol}{3.333 mol+7.17\times 10^{-6} mol}$

$p_s=23.7599 mmHg$

2) Depression in freezing point $\Delta T_f$ is given by:

$\Delta T_f=K_f\times m$

$K_f$ = molal depression constant of solvent

m = molality of the solution = $\frac{moles}{\text{mass of solvent in kg}}$

$\Delta T_f=1.86 K kg/mol\times \frac{7.17\times 10^{-6} mol}{0.050 kg}$

$\Delta T_f=0.0002667 K$

3) Elevation in boiling point $\Delta T_b$ is given by:

$\Delta T_b=K_b\times m$

$K_b$ = molal elevation constant of solvent

m = molality of the solution = $\frac{moles}{\text{mass of solvent in kg}}$

$\Delta T_b=0.52 K kg/mol\times \frac{7.17\times 10^{-6} mol}{0.050 kg}$

$\Delta T_b=0.0000745 K$

4) Osmotic pressure of the solution $\pi$ is given as:

$\pi =cRT$

c = concentration of solution = $\frac{Moles}{Volume(L)}$

T = temperature of the solution

R = Universal gas constant = 0.0821 atm L/mol K

given , T = 298 K,

Mass of water = 50 g

Density of water = 1 g/ml

Volume of the water = $\frac{50 g}{1 g/mL}=50 mL=0.050 L$

$c=\frac{7.17\times 10^{-6} mol}{0.050 L}$

Since, there is less amount of solute in solvent volume of solution can be taken equal to the volume to the solution.

$\pi =\frac{7.17\times 10^{-6} mol}{0.050 L}\times 0.0821 atm L/mol K\times 298 K$

$\pi=0.0035 atm$

4 0

4 years ago

An iron bar at 200c is placed in thermal contact with an identical iron bar at 120c in an isolated system

Step2247 [10]

Conduction: In the conduction, the heat is transferred from the hotter body to the colder body until the temperature on both bodies are equal.

In thermal equilibrium, there is no heat transfer as the heat is transferred till the temperature on the bodies are not same.

In the given problem, an iron bar at 200°C is placed in thermal contact with an identical iron bar at 120°C in an isolated system. After 30 minutes, the thermal equilibrium is attained. Then, the temperature on both iron bars are equal.Both iron bars are at 160°C in an isolated system.

But in an open system, the temperatures of the iron bars after 30 minutes would be less than 160°C. There will be heat lost to the surrounding. The room temperature is 25°C. There will be exchange of the heat occur between the iron bars and the surrounding. But It would take more than 30 minutes for both iron bars to reach 160°C because heat would be transferred less efficiently.

7 0

3 years ago

Read 2 more answers

Place the following in order from smallest to largest : organ, cell, body system, and tissue

Shkiper50 [21]

CELL

TISSUE

ORGAN

BODY SYSTEM

3 0

3 years ago

Read 2 more answers

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 22.8g of carbon were burned in the presence of

rosijanka [135]

Answer:

83.6 g

Explanation:

The limiting reactant is carbon and oxygen is in excess.

C + O₂ ⟶ CO₂

Data:

Mass of C = 22.8 g

Mass of O₂ = 78.0 g

Mass of unreacted O₂ = 17.2 g

Calculations:

Mass of O₂ reacted = 78.0 g - 17.2 g = 60.8 g

Mass of reactants (C + O₂) = 22.8 g + 60.8 g = 83.6 g

According to the Law of Conservation of Mass, the mass of the product (CO₂) equals the sum of the masses of the reactants.

The mass of CO₂ is 83.6 g.

3 0

3 years ago

What is the relationship between frequency and wavelength for electromagnetic waves?

DiKsa [7]

Answer:

first option!!

Explanation:

3 0

3 years ago