osmotic pressure chemistry

64,480 results, page 21

1. Physics

What is the absolute pressure if the gauge pressure is 100 kPa?
2. Physics

What is the gauge pressure if the absolute pressure is 400 kPa?
3. math

1 + d/33 gives the pressure in the atmosphere at the depth of the sea. the pressure at 40 feet is?
4. Physics

What is the gauge pressure if the absolute pressure is 321 atm?
5. health

List sources of internal pressure and external pressure
6. Physics

The air pressure in a tire is 2.38 atm. What is this pressure in kilopascals?
7. physics

If the systolic blood pressure is 120mmHg, what is the pressure in lb/in^2 and in pascals?
8. Chemistry

Calculate the partial pressure of monatomic hydrogen in hydrogen gas at 2000 K and 1 atm pressure. Given: (i) For ½ H2 -> H, DeltaHo298=217,990 J; DeltaSo298=49.35 J/K. (ii) Assume that the heat capacity of monatomic gas to be 3/2R (iii)The heat capacity of H2 assume to be...
9. BIOLOGY

Heat exhaustion caused by a person's exposure to heat can result in weakness or collapse. It usually involves a decrease in blood pressure. Explain why the homeostasis adjustment to heat can cause a drop in blood pressure. ---------- I'm not sure if I'm correct. but is it ...
10. Physics

At one point in a pipeline, the water's speed is 3.00 and the gauge pressure is 4.00×104 . Find the gauge pressure at a second point in the line 11.0 lower than the first if the pipe diameter at the second point is twice that at the first. I've been trying to use Bernoulli's ...
11. Algebra

The function p(d)=1+d/33 gives the pressure, in atmospheres (atm), at a depth d in the sea (d is in feet). Note that p(0)=1 atm, p(33)=2, and so on. Find the pressure at 100 feet. The pressure at 100 feet is ___? atm. (Type an integer or a simplified fraction)
12. Chemistry

I'm having trouble understanding rate laws and manipulating them. So, for example, the rate law is rate= k[CO2][O3]. I was taught, maybe if I am just forgetting some pieces(been awhile), if I were to triple/double the partial pressure of CO2/O3, the rate of that element would ...
13. Chemistry

Please help me out... The pressure of a container of fluorine gas with a volume of 1.5L is 678mmHg at 55.0*C. a. If the volume of the fluorine gas increases to 5.0L, what would be the pressure of the gas in atm? The amount and tempature of gas are consistant. b.How many grams ...
14. CHEM LAB!!! Must finish!!!

Thanks to DrBob222 for the help, but it only answered a few questions! PLEASE help answer, anyone? This is a chemistry lab on boiling point, and I need some help with these questions!- Thanks! (Info): You are going to take a trip. On this trip you will be stopping at different...
15. chemistry

17 liters of a gas is at an initial temperature of 67 degrees C and a pressure of 88.89 atm, what will be the pressure of the gas if the tempetature of the gas is raised to 94 degrees C and the volume of the gas is decreased to 12 liters? 177 atm 36.3 atm 108 atm 136 atm 219 atm
16. physics

A sample of gas at P = 1123 Pa, V = 1.41 L, and T = 291 K is confined in a cylinder a) Find the new pressure if the volume is reduced to half of the original volume at the same temperature. b) If the temperature is raised to 391 K in the process of part (a), what is the new ...

Lime (CaO) is used to prevent SO2 from escaping smokestacks of coal burning power plants by the formation of solid CaSO4•2H2O also known as the mineral gypsum. One of the important reactions in the overall process is the dissociation of CaCO3(s). b. If a 12.0 g sample of ...
18. Chemistry

Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the gases are allowed to mix. What would be the final pressure in torr after mixing, if initially H2 is in the first flask (Volume = 4.000 L) at 271.8 torr and CCl4 is in the second...
19. Chem

A 150.0 mL cylinder containing CO at a pressure of 9.50 atm is connected by a valve to 9500 mL cylinder containing B5H9 at 2280 torr pressure. Calculate the partial pressure (atm) of B5H9 when the valve is opened.
20. Math

The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 30 meters is 80 newtons per square centimeter. What pressure is exerted at 50 meters?
21. Chem 130

A sample of oxygen gas is collected by displacement of water at 25°C and 1.11 atm total pressure. If the vapor pressure of water is 23.756 mm Hg at 25°C, what is the partial pressure of the oxygen gas in the sample?
22. Chemistry

Using the reaction and the E∘ given below 2Co^3+(aq)+2Cl^−(aq)→2Co^2+(aq)+Cl2(g) E∘=0.46 V what is the cell potential at 25 ∘C if the concentration are [Co^3+]= 0.565M , [Co^2+]= 0.554M , and [Cl^−]= 0.838M and the pressure of Cl2 is PCl2= 8...
23. Physics

The pressure gauge on a tank registers the gauge pressure, which is the difference between the interior and exterior pressure. When the tank is full of oxygen (O2), it contains 9.00 kg of the gas at a gauge pressure of 40.0 atm. Determine the mass of oxygen that has been ...
24. Physics

The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3. (a) What is the thickness of the Martian atmosphere, assuming the boundary between atmosphere and outer space to be the point where atmospheric pressure drops to 0.01% ...
25. Chemistry

A sample of chlorine gas at a pressure of 420 mm Hg and in a volume of 3.50L was heated from 18.0 degrees celsius to 45 degrees celsius after being transferred to a container of volume 2.35L. The pressure in this new container should be about? The original T is 18 degrees ...
26. Physics

A diver thinks that if a typical snorkel tube of 0.13 m length works, then a tube of length 6.2 m should also work. When trying to use such a tube, what is the pressure difference between the external pressure on the diver's chest and the air pressure in the lungs of the diver...
27. Chemistry Eq. Question

3H2(g) + N2(g) reverse reaction arrow 2NH3(g) What factors would affect the equilibrium constant for the reaction above? (Select all that apply.) increasing the H2 concentration decreasing the NH3 concentration increasing the temperature decreasing the temperature increasing ...
28. Physics II

find the velocity of escape of water through a small opening in a broiler where the pressure is 10^6 Pa above atmospheric pressure, assumed h1=h2 and v1=0
29. Physicis

A mass of gas occupies 20cm at5c and 760mmhg pressure what is its volume at30c and800mmhg pressure .
30. fluid mechanics

A plastic bag is filled with 1 ft3 of air at 17° C at atmospheric pressure. What is volume at 2 atm pressure?
31. Physics

Taking a decibel to be an increase in pressure of 12.2%, by what factor has the pressure changed when the sound level has fallen by 8.00 decibels?
32. Science

A constant volume of O2 gas is heated from 140C to 216C. The final pressure is 22.3 atm. What was the initial pressure?
33. chemical equilibrium

if the pressure of n2/h2 in aclosed apparatus is 100 atm and 20 percent of the mixture then react ,the pressure at the same temperature would be
34. AP Chem

Calculate the partial pressure of 4.0 g methane when mixed with 16.0 g oxygen. The total pressure of both gases is 600. torr.
35. Physics

How much pressure is required to crack an egg under water Is there like a table I could look at that has values for how much pressure things can withstand before cracking
36. Air conditioning

The partial pressure of water vapor in an atmosphere at 35oC and 740 mm Hg pressure is 37 mm Hg. What is the relative humidity? What is the actual concentration of water vapor, expressed in ppm? The vapor pressure of water at 35oC is 42 mm Hg.
37. AP CHEMISTRY

The equilibrium constant for the reaction PCl3(g) + Cl2(g) ⇀↽ PCl5(g) is 35000 at 760 ◦C. At equilibrium, the partial pressure of PCl5 was 150 bar and that of PCl3 was 8.12 bar. Calculate the equilibrium partial pressure of Cl2. Answer in units of bar. I got ...
38. Chemistry

a diver exhales a bubble with a volume of 250 mL at a pressure of 2.4 atm and a temperature of 15 degrees celcius. What is the volume of the bubble when it reaches the surface where the pressure is 1.0 atm and the temperature is 27 degrees celcius
39. Mechanics

In a direct acting pressure relief valve, 64 bar pressure is acting on the conical dart seating area and the dart is kept closed by a spring force of 50 kg opposing the pressure. (5) a) Determine the bore diameter on the seat. b) What will the spring force be if a pressure of ...
40. Hydraulics

In a direct acting pressure relief valve, 64 bar pressure is acting on the conical dart seating area and the dart is kept closed by a spring force of 50 kg opposing the pressure. (5) a) Determine the bore diameter on the seat. b) What will the spring force be if a pressure of ...
41. Chemistry

A weather balloon is inflated to a volume of 26.2 L at a pressure of 755 mmHg and a temperature of 32.5 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 360. mmHg and the temperature is -13.5 ∘C. Assuming the balloon can freely expand, ...
42. chemistry help plz

Le chatelier's principle? co(g)+cl2(g)=cocl2(g)is reversible and ,after a certain amount of time ,will reach equilibrium.Explain,using Le chatelier's principle,what effect: 1)increasing the pressure (at constant temperature) 2)increasing the temperature (at constant pressure) ...
43. Chemistry

Assume that you have a liquid in a cylinder equipped with a movable piston. There is no air in the cylinder, the volume of space above the liquid is 200 mL, and the equilibrium vapor pressure above the liquid is 29.0 mm Hg. What is the equilibrium pressure above the liquid ...
44. Chemistry

A weather balloon is inflated to a volume of 29.9 L at a pressure of 755 mmHg and a temperature of 33.0 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 385 mmHg and the temperature is -16.2 ∘C. Assuming the balloon can freely expand, ...
45. chemistry

Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored (forward, reverse, or neither) H2(g)+Cl2(g)<=>2HCl(g) +184 kJ A)addition of Cl2 B)removal of HCl C)increased pressure D)decreased temperature E)...
46. science

A piston pump containing 2 liters of nitrogen gas at 3000 psia (absolute) pressure empties its entire contents into a 10 liter pressure container. Before the transfer of gas the 10 liter container already contained nitrogen gas at 100 psia (absolute) pressure. Assuming ...
47. chem

convert a pressure 1.75atm to kpa convert the pressure of 1.75atm to mm Hg convert a pressure of 570 torr to atmospheres
48. Physics - force and pressure

A force of 2000N acts on an area of 4m^2, what is the pressure? What would be the pressure if the same force acted on half the area?
49. Chemistry

The reaction 2NO (g) + 2H2 -> N2 (g) + 2H2O (g) was found to follow the rate law, rate = k[NO]^2[H2]. By what factor will the rate of reaction increase when the pressure of NO gas is increased from 2.0 atm to 3.0 atm? Assume all other conditions are held constant. I'm ...
50. chemisrty

Q6) A 10 L container contains a mixture of 0.8 g of He and 8 g of Ar at 0 oC. a) (1 pt) Calculate the total pressure of the gas mixture. b) (1 pt) Calculate the partial pressure of each gas in the gas mixture. c) (1 pt) If the initial total pressure of the container was 1.5 ...
51. AP Chemistry

These are some lab questions from the following lab: Vapor Pressure and Enthalpy of Vaporization of Water 1. Why does vapor pressure change with temperature? 2. The assumption was made that the vapor pressure of water is negligible at a temperature close to zero. Find the ...
52. science

3. Liquefied air (assuming it is only O2 and N2) is kept in a container where pressure and temperature can be controlled. a. What is the maximum temperature at which the mixture exists as a liquid? If this temperature is kept constant, what is the minimum pressure to keep the ...
53. chemistry

For the reaction below, KP = 1.6 × 106 at 400.0 °C. HCHO2( g ) <--> CO( g ) + H2O( g ) A mixture of CO( g ) and H2O(l ) was prepared in a 2.00 L reaction vessel at 25 °C in which the pressure of CO was 0.177 atm. The mixture also contained 0.391 g of H2O. The vessel ...
54. chemistry

A gas mixture with a total pressure of 745mmHg contains each of the following gases at the indicated partial pressures: CO2, 257 mmHg; Ar, 123mmHg; and O2, 160 mmHg. The mixture also contains helium gas. What is the partial pressure of the helium gas? What mass of helium gas ...
55. chemistry

If the atmospheric pressure is not corrected for vapor pressure of water, what effect will this have on number of moles of oxygen calculated? Use numbers from your experiment and determine the percent deviation caused by this omission. Is this a significant error? this is a ...
56. chemistry

The problem: Nitrogen can react with steam to form ammonia and nitrogen monoxide gas. A 20.0L sample of nitrogen at 173C and 772mmHg is made to react with an excess of steam. The products are collected at room temperature (25C) into an evacuated flask with a volume of 15.0 A. ...
57. Chemistry AP

What is the mass of oxygen in a ml flask if the pressure is 1.00 atm and a temperature of 22.0 Celsius?
58. Chemistry

Which of the following has the highest vapor pressure? CCl4 CBr4 CH3CH3 CH3CHBr2
59. Chemistry

Which of the following indicates the greatest pressure? A) 1 atm B) 777 torr C) 5.5 mm Hg D) 1000 Pa E) 12 psi
60. chemistry

Can metals be fused without heat or pressure, and if it is possible would that be a form of cold fusion?
61. chemistry

what is the total pressure in a gas mixture of 100 mm hg O2, 820 mm hg N2, and 1.5 mm hg CO2?
62. Applied Chemistry pls help!

At what depth in water is the pressure equal to 2.0m atmosphere?
63. Chemistry

What is the pressure in a 22.1-L cylinder filled with 16.3g of oxygen gas at a temperature of 329K?
64. College Chemistry

Does Vapor Pressure decrease as intermolecular forces increase???
65. chemistry

What volume does 627 cm3 of a gas at 14°C occupy at 40°C, if the pressure does not change?
66. chemistry

a 0.296g of CO2 has a volume of 565ml and a pressure of 425mmHG, what is the temperature??????
67. chemistry

what is the total pressure in a gas mixture of 100 mm hg O2, 820 mm hg N2, and 1.5 mm hg CO2?
68. Chemistry

if the total partial pressure of Ne and He having the same mass in a sealed container is 6atm then what is that of Ne?
69. Organic Chemistry Lab

They are asking me to predict the boiling point at pressure of 30 torr. How would I do that? Thanks :D
70. chemistry

If a gas contains 25 ml of oxygen at 37oC and a pressure of 700 mm Hg, what is the volume under STP.
71. Chemistry

At what temperature would 41.9 g of oxygen in a 40.0-liter tank produce a pressure of 15.2 psi?
72. CHEMiSTRY

what is the relationship between the pressure of a gas and the absolute temperature when the volume is kept constant ?
73. chemistry

Vapor pressure ___________ as the temperature of the liquid in equilibrium with it decreases.
74. chemistry

Assuming a temperature of 37 C and 1 atm pressure, how many mol/min of CO2 is this?
75. chemistry

Explain how the addition of a solute affects the vapor pressure of the solvent.
76. Chemistry

Calculate the pressure of an ideal gas if you have 4.3 L and 2.2 miles at a temperature of 238 K
77. Chemistry

F2 (g) <--> 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?
78. chemistry

If 20.0g of nitrogen gas has a volume of 4.00L and a pressure of 6.0 atm, what is its temperature?

What values does STP have for pressure in the units of kPa and atm and mmHg?
80. Chemistry

A balloon contains 0.350 mol of Ar at 5.00°C and 68.0 kPa pressure. What is the volume of the gas?
81. Chemistry

F2 (g) <--> 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?
82. Chemistry

calculate the volume occupied by 7g of N2 gas at 27 degree c and 750mm Hg pressure
83. Chemistry

Calculate the density of F2 gas at 27 degree Celsius and 1.00 atm pressure?
84. Chemistry

At constant pressure, which of these systems do work on the surroundings? Check all that apply. A(s) + 2B(g) ---> C(g) 2A(g) + B(g) ---> 4C(g) A(g) + 2B(g) ---> 2C(g) A(s) + B(s) ---> C(g)
85. CHEMISTRY

What pressure would be required to form a 0.045 M solution of helium (kH = 3.7 x 10-4 M/atm) at 25 °C????
86. chemistry

how much faster does krypton diffuse than bromine under the same conditions of temperature and pressure?
87. Chemistry

Find density of C02 at room temperature and normal pressure.
88. chemistry

A mixture of 94.6g of O2 and 82.2g of Ne is placed in a 200.0L container at 250K . What is the partial pressure of O2 in atmospheres?
89. chemistry

A pressurised can of whipped cream has an internal pressure of 1.11x105 Pa at 25.0 oC If it is placed in a freezer at -15.0 oC, what is the new value?
90. chemistry

what will be the pressure of 0.010m of oxygen gas in a 4.5L flask at a temperature of 10,000C?
91. Chemistry

if the pressure read by the barometer is 0.882atm, what is the height of the column of mercury in cm?
92. chemistry

Vapor pressure ___________ as the temperature of the liquid in equilibrium with it increases.
93. Chemistry

Determine the density of chlorine gas at 22C and 1.00 atm pressure.
94. chemistry

Calculate the pressure in the flask in torr, atmosphere, and pascals if ha = 114 mm.
95. Chemistry

What is the yield of the synthesis of ammonia to 400° C and 500 atm of pressure?
96. chemistry

At what temperature does 14.2 g of nitrogen gas have a pressure of 3.25 atm in a 14.0 liter tank?
97. Chemistry

F2 (g) <--> 2 F (g) A 1.00 mol sample of F2 is placed in a 100. L container at 1000K. What is the pressure of the F2 before any decomposes?
98. Chemistry

A 630. mL flask contains O2 at a pressure of 0.75 atm and a temperature of 20°C. What mass of O2 is present?
99. Chemistry

100mls of propane gas in grams. Pressure is equal to one atmosphere
100. Chemistry

Which solution has a higher vapor pressure, 1 M NaCl or 1 M glucose(C6H12O6)?