dissolved oxygen
Compute the equilibrium D.O. concentration based on temperature (KH,O2 = 0.0021e0.021T; current pO2 of the atmosphere is 10-0.68 bar).
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Aquariums require a delicate balance of dissolved gases. A clown fish requires at least 7.0 mg/L...
Aquariums require a delicate balance of dissolved gases. A clown fish requires at least 7.0 mg/L O2 to survive, but greater than 30.0 ppm of CO2 is toxic. You want to setup a 20.0 L aquarium tank at 25.0 °C, where only the atmosphere is responsible for dissolved gases (you’ve just added the fish, so ignore O2 consumption and CO2 production). PO2 = 0.21 atm PCO2 = 0.0039 atm 20. What is the minimum O2 concentration where the fish can...
Calculate the masses of oxygen and nitrogen that are dissolved in 7.0 L of aqueous solution...
Calculate the masses of oxygen and nitrogen that are dissolved in 7.0 L of aqueous solution in equilibrium with air at 25 °C and 760 Torr. Assume that air is 21% oxygen and 78% nitrogen by volume. Henry's law constants for gases in water at 25 °C Gas He kh (bar · M-1) 2.7 x 103 1.6 x 103 7.9 x 102 29 mass: mg 02 CO2 HS mass: mg N2 10.
g. What is the expected concentration of oxygen in open bodies water like lakes and rivers...
g. What is the expected concentration of oxygen in open bodies water like lakes and rivers that are in contact with the atmosphere at 25 °C? What is the mass of dissolved O2 in 1 iter of water? Assume partial pressure of O2 in atmosphere is 0.22 bar and use Henry's Law constant K.30x102 mol(m3 kPa) for oxygen in water.
4 10. Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our...
4 10. Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, the reaction below can proceed to a measurable extent. N2(9) + O2(9) 2 NO(9) At 3000 K, the reaction above has ke=0.0153. If 0.3502 mol of pure NO is injected into an evacuated 2.0-L container and heated to 3000K, what will be the equilibrium concentration of NO? Submit Answer Tries 0/99
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2...
Carbon dioxide dissolves in water to form carbonic acid, which
is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium
equation The acid dissociation constants listed in most standard
reference texts for carbonic acid actually apply to dissolved CO2.
For a CO2 partial pressure of 1.8×10–4 bar in the atmosphere, what
is the pH of water in equilibrium with the atmosphere? (For
carbonic acid Ka1 = 4.46× 10–7 and Ka2 = 4.69× 10–11).
Carbon dioxide dissolves in water to form carbonic...
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2 . Dissolved...
Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2 . Dissolved CO2 satisfies the equilibrium equation CO2(g)↽−−⇀CO2(aq)?=0.032 CO 2 ( g ) ↽ − − ⇀ CO 2 ( aq ) K = 0.032 The acid dissociation constants listed in most standard reference texts for carbonic acid actually apply to dissolved CO2 CO 2 . For a CO2 CO 2 partial pressure of 2.6×10−4 bar 2.6 × 10 − 4 bar in the atmosphere, what...
Nitrogen dioxide gas undergoes decomposition producing nitrogen monoxide and oxygen gases: 2 NO2(g)........ 2 NO(g) + O2...
Nitrogen dioxide gas undergoes decomposition producing nitrogen monoxide and oxygen gases: 2 NO2(g)........ 2 NO(g) + O2(g) A sample consisting of 0.10 moles of NO2 is placed in a 10.0 L in a container that is then heated to 750 K. When equilibrium is reached, the pressure in the container is 0.827 bar. Calculate the equilibrium constant and the degree of dissociation at this temperature. (Hint: pressures are directly proportional to concentration, so they can be used in ICE tables).
1) a) The flue gas from a combustion process was found to contain 78% N2, 20%...
1) a) The flue gas from a combustion process was found to contain 78% N2, 20% O2, 1.1% CO2 and 0.9% Ar. The gas was cooled to 298 K, pressurised to 2.0 x 105 Pa in the presence of water and allowed to come to equilibrium. Rank these gases in order from highest concentration to lowest concentration. The Henry’s Law constants for the gases at 298 K are: kH(N2) = 6.45 x 10^–9 mol L–1 Pa–1 kH(O2) = 1.34 x...
Calculate the Eh for (a) acid mine drainage (pH = 4) and (b) ocean water (pH...
Calculate the Eh for (a) acid mine drainage (pH = 4) and (b) ocean water (pH = 8.3), in equilibrium with atmospheric oxygen (assume pO2 = O2 fugacity = 0.2 bar) at 25 °C. Eh = 1.23 + 0.01479 log10[O2] – 0.05916 pH. [O2] = oxygen fugacity. (3 pts)
. The oxygen: air entrainment ratio for 60% oxygen is ___________ 2. Calculate the air: O2...
. The oxygen: air entrainment ratio for 60% oxygen is ___________ 2. Calculate the air: O2 ratio of 30% O2: air entrainment device ___________ 3. An oxygen flowrate of 12 L/min is used on a 60% Oxygen: air entrainment mask. What is the O2: air entrainment ratio and total flow? ___________ 4. If the patient's blanket is covering the port on the air entrainment device, what is the FiO2 that is being delivered? _______% 5. Which of these methods cause...
Calculate the masses of oxygen and nitrogen that are dissolved in 7.0 L of aqueous solution in equilibrium with air at 25 °C and 760 Torr. Assume that air is 21% oxygen and 78% nitrogen by volume. Henry's law constants for gases in water at 25 °C Gas He kh (bar · M-1) 2.7 x 103 1.6 x 103 7.9 x 102 29 mass: mg 02 CO2 HS mass: mg N2 10.
g. What is the expected concentration of oxygen in open bodies water like lakes and rivers that are in contact with the atmosphere at 25 °C? What is the mass of dissolved O2 in 1 iter of water? Assume partial pressure of O2 in atmosphere is 0.22 bar and use Henry's Law constant K.30x102 mol(m3 kPa) for oxygen in water.
4 10. Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, the reaction below can proceed to a measurable extent. N2(9) + O2(9) 2 NO(9) At 3000 K, the reaction above has ke=0.0153. If 0.3502 mol of pure NO is injected into an evacuated 2.0-L container and heated to 3000K, what will be the equilibrium concentration of NO? Submit Answer Tries 0/99
Carbon dioxide dissolves in water to form carbonic acid, which
is primarily dissolved CO2. Dissolved CO2 satisfies the equilibrium
equation The acid dissociation constants listed in most standard
reference texts for carbonic acid actually apply to dissolved CO2.
For a CO2 partial pressure of 1.8×10–4 bar in the atmosphere, what
is the pH of water in equilibrium with the atmosphere? (For
carbonic acid Ka1 = 4.46× 10–7 and Ka2 = 4.69× 10–11).
Carbon dioxide dissolves in water to form carbonic...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago