# osmotic pressure chemistry

63,583 results, page 47

### Thermodynamics

In one of the boiler rooms in an Industrial Plant, the barometer reads 750 mm Hg. Determine the absolute pressures in Kpa of the following pressure measuring instrument readings: pressure gauges reads 46 psi and 76 in. Hg; and compound gauges registers 13 Kpa vacuum and 2.5 ...

### chem

Determine the mass(w/w%) percent of CaCl2 given the following information. The vapor pressure of a CaCl2 solution is 81.6 mmHg at 50degrees C. The vapor pressure of pure water at this temp is 92.6mmHg. Assume that you have 1.00mol of water.[Raoult's Law: P(solution)=X(solvent)...

### earth

#16 the inner core of the earth is solid because of increased__________ a> density and composition b> density and temperature c> temperature and pressure d> pressure and density

### 7th Grade Help

If the temperature increases in a sample of gas at constant volume, then its a. volume increases b. pressure decreases c. pressure increases d. volume decreases Plz help me, I don't know it.

### E.I.S.J

An ideal gas is sealed within a container at a tempreture of 17 degree celcies and a pressure of 101KPa. The container is heated until the tempreture of the gas reaches 100 degree celcies. A valve in the container is then opened to allow gas to escape until the pressure falls ...

### Calculus 2

The pressure P of a gas is related to its volume V by the formula P=k/V where k is a constant. A quantity of gas with an initial volume of 1 cubic meter and a pressure of 2.5 newtons per square meter expands to a volume of 16 cubic meters. Find the work done by the gas.

### science

water flows steadily through a horizontal pipe of non uniform cross section. if the pressure of water is 4*10^4 N/m^2 at a point where the velocity of flow is 2ms^-1 and cross section is 0.02 m^2 what is the pressure at a point where cross section reduces to 0.01m^2?

### physics

An ideal gas at 18.5°C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0°C, what will be the pressure of the gas? Pa I used the formula pv = nRT (...

### Chemistry

Fill a balloon with helium gas to a volume of 2.68 L at 23 celsius and 789mmHg. What would the volume of helium if the pressure changes to 632 mmHg but the temperature is unchanged. This is how I solved it V2 = V1 X P1/P2 2.68L X 789/632 = ANSWER V2 =.3.35 L Is this correct

### CHEMISTRY

a gas mixtuer consists of equal masses of methane(molecular weight 16.0) and argon (atomic weight 40.0) if the partial pressure of argon is 26.6 kPa, what is that of methane in the same units? 10.7 26.7 66.7 34.1 I am going with 26.7 Do you agree and why please Thanks Andy

### chemistry

you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity for the compound.

### chemistry

If you filled up three balloons with equal volumes of hydrogen, argon, and carbon dioxide gas all at the same temperature and pressure, which balloon would weigh the most? which balloon would weigh the least?

### Chemistry

A 1.30-L sample of argon gas is at 1.02 atm and 21.5 degrees Celsius. a. what mass of argon is in the container. b. If the temperature is raised to 500 degrees celsius while the volume remains constant, calculate the new pressure, in stmospheres.

### Chemistry

Two liquids A and B have vapor pressures of 71.3 and 131 mmHg, respectively, at 25 degrees Celsius. What is the total vapor pressure of the ideal solution made up in the following concentrations? 1.00 mole of A and 1.00 mole of B 2.00 moles of A and 5.00 moles of B

### Chemistry

Bulb A is 100 mL and contains Helium at 1 atm. Bulb B is 500 mL and contains Argon at 2 atm. The bulbs are connected together by a valve. What is the pressure of gas A after the valves are opened? (assume constant temperature)

### chemistry

A sample of an ideal gas at 1.00 atm and a volume of 1.31L was placed in a weighted balloon and dropped into the ocean. As the pressure had increased to 45.0 atm, what was the volume of the sample? Assume that the temperature was held constant.

### chemistry

The heat of solution of ammonium nitrate is 26.2 kJ/mol, and a 7.315 g sample of NH4NO3 is added to 40.0 mL of water in a constant pressure calorimeter initially at 25.2°C, what is the final temperature reached by the solution? (The specific heat of water = 4.184 J/g•°C)

### Chemistry

an ideal system absorbed some amount of heat and gas expand and the piston move to 0.4 meter against than the atmospheric pressure. If the cross sectional area of the container is 0.6 meter2. What is the amount of heat absorbed?

### physics

A U-shaped tube contains a fluid of density 1.5x10^3 kg/m^3. the right side of the tube is closed, with vacuum above the fluid. The left side of the tube is open to the atmosphere. Assume the atmospheric pressure outside the tube is exactly 10^5 Pa. a) How much higher will the...

### Chemistry

Heyy, okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing something. The question is: A vessel of 6.84 L in volume contains 3.61 L of pure water at 25°C. A partial pressure of 3.67 atm of CO2 is quickly injected ...

### chemistry

A sample of ammonia gas at 65.5°C and 0.921 atm has a volume of 15.31 L. What is its volume when the temperature is -15.8°C and its pressure is 0.921 atm?

### chemistry

a substance has a vapor pressure of 35.0 mmHg at 52.0 degrees Celsius and 70.0 mm Hg at 77.0 degrees Celsius. What is the heat of vaporization for this substance?

### CHEMISTRY

The gas sample has a volume of 76.7 μL at 22.1 °C. What is the volume of the gas after the sample is cooled to 9.8 °C at constant pressure?

### chemistry

Benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1 C . At what temperature does benzene boil when the external pressure is 445 ? This is how I am solving this problem, but when I enter the answer it says im wrong. Can someone help with the ...

### chemistry

A saturated solution was formed when 4.48×10−2 L of argon, at a pressure of 1.0 atm and temperature of 25 C, was dissolved in 1.0 L of water. Calculate the Henry's law constant for argon in mol/atm. I got an answer of 1.4*10^-3, maybe my units are wrong, idk but if u ...

### chemistry

describe how the changes would affect each of the following chemical equilibra involving gases.. 2NO2(arows facing both direction) N204+HEAT 1.THE TEMPERATURE IS INCREASE 2.THE PRESSURE IS DECREASED 3.THE CONCENTRATION OF NO2 is increase 4.THE CONCENTRATION OF N2O4 IS DECRESED

### Chemistry -buffers.

The pH of an arterial blood sample is 7.15. upon acidification of 10 ml of the plasma 5.91ml of CO2 is produced at standard temperature and presure. Calculate-a) total CO2 in the specimen b)the individual concentration of disolved CO2(H2CO3) and HCO3- c)The partial pressure of...

### organic chemistry

Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C. The vapor pressure of water at 69.4°C is 227.7 mmHg. Compare the result with the ...

### Chemistry

What volume of gas can be produced in a lab where pressure is 16.0 psi and temperature is 25 C if you collect it over water from the reaction of 50g of ammonium sulfate with 50g of aluminum hydroxide. The equation for the reaction is: 3(NH4)2SO4 + 2Al(OH)3 ---> Al2(SO4)3 + ...

### physics

A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes?

### Chemistry

I need to take some following samples of these: *a hydrocarbon w/a molecular mass greater than 100 g/mo *something w/ L-carvone or D-carvone in it *a non-electrolyte that dissloves in water *something w/a pressure greater than 2.o atom *a proton donor can you help me?? Go down...

### physics

A sealed tank containing seawater to a height of 11.0 m also contains air above the water at a gauge pressure of 3.00 atm. Water flows out from the bottom though a small hole. Calculate the speed with which the water comes out of the tank. I believe this has something to do ...

### Physics

A horizontal pipe contains water at a pressure of 120kPa flowing with a speed of 1.4m/s . The pipe narrows to one-half its original diameter. a) what is the speed of the water? b) what is the pressure of the water? I tried using the continuity equation A1V1=A2V2, then V2= (A1/...

### Chem

Consider the reaction: A(g)⇌2B(g) Find the equilibrium partial pressures of A and B for each of the different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm. Make any appropriate ...

### Engineering/Physics

When gasoline is burned in the cylinder of an engine, it creates a high pressure that pushes on the piston. If the pressure is 150 pound-force per square inch, and it moves the 3-inch diameter piston a distance of 6 centimeters in 0.1 seconds...

### chemistry

Ok, so using Le Chatelier's Principle If you add heat to an exothermic reaction, the equilibrium will shift to the left. If you remove heat to an exothermic reaction, the equilibrium will shift to the right. What is it for an ENDOTHERMIC reaction? If you add a substance, the ...

### Chemistry

a) An equilibrium exists between three chemical species in the blood , Hemoglobin, oxygenated hemoglobin and oxygen. Using the symbols Hb for hemoglobin , O2 for oxygen and HbO2 for oxygenated hemoglobin write out the equilibrium reaction. If you have determined if the forward...

### MATH

Of 1936 people who came into a blood bank to give blood, 200 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure.

### statistics

Of 1735 people who came into a blood bank to give blood, 373 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure.

### Math

Of 1901 people who came into a blood bank to give blood, 315 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure

### Thermophysic and electromagnetisme

A tank of volume V = 2.0 l will burst if the pressure exceeds 100 atm. The tank is filled with 6.0 mole of an ideal gas at a temperature of 23 ° C. We heat the tank. a)What is the initial pressure in the tank? b)At what temperature we can heat the tank with content without ...

### Physics

Please someone help..A horizontal pipe 10.0cm in diameter has a smooth reduction to a pipe 5.0cm in diameter. If the pressure of the water in the large pipe is 80000Pa and the pressure in the small pipe is 60000Pa at what rate does water flow through the pipe?

### Physics

Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of) p=σ/r, where σ=0.072 ...

### Physics Help

Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of) p=σ/r, where σ=0.072 ...

### Chemistry

Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...

### Chemistry

Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...

### Chemistry

Hi! I have another question. So 1 kcal of heat is added to 1.5 L of oxygen in a container at constant pressure. (1atm). Then volume increases to 3.1L. they want to know total energy change. Now i think the formula is DH=DU + PDV so what i did was DH = 1 kcal + 1atm(3.1-1.5) = ...

### Biophysical Chemistry

A mole of liquid water is vaporized at 100 degree C and 1 atm. Th heat of vaporization is 40.7 kJ/mol. What are the values of Wrev, q, detaU and deta H? I'm not sure what is the volume because the pressure it not change so I so confort can I use Wrev = -nRT.ln(V2/V1) or Wrev...

### Chemistry

A 7.30-L container holds a mixture of two gases at 45 °C. The partial pressures of gas A and gas B, respectively, are 0.342 atm and 0.527 atm. If 0.250 mol a third gas is added with no change in volume or temperature, what will the total pressure become?

### chemistry

A 8.90-L container holds a mixture of two gases at 45 C. The partial pressures of gas A and gas B, respectively, are .294 atm and .860 atm. If .100 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

### Chemistry

A 9.00-L container holds a mixture of two gases at 43 °C. The partial pressures of gas A and gas B, respectively, are 0.257 atm and 0.579 atm. If 0.110 mol a third gas is added with no change in volume or temperature, what will the total pressure become?

### Chemistry

2 moles of ideal gas at 300K, initial volume 25 L, are compressed under an external pressure at 3600 torr. Assuming the temp and the internal energy of gas do not change, what is the entropy change of the gas? (Assume the heat flow is reversible)

### Chemistry

A hot air balloon has a volume of 5.00x10^6 liters. Assuming a density of air of 1.293g/L at 25C and 1atm pressure, what temperature must the operator of the balloon achieve in order for the balloon to lift a 500.0kg payload? How do I set this up???????

### chemistry

A 8.75-L container holds a mixture of two gases at 23 °C. The partial pressures of gas A and gas B, respectively, are 0.317 atm and 0.755 atm. If 0.100 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

### Chemistry

A 8.25-L container holds a mixture of two gases at 39 °C. The partial pressures of gas A and gas B, respectively, are 0.186 atm and 0.884 atm. If 0.120 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

### chemistry

A 7.30-L container holds a mixture of two gases at 45 °C. The partial pressures of gas A and gas B, respectively, are 0.410 atm and 0.620 atm. If 0.150 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

### Science help pleaseeeee?!?!

A gas has a volume of 4.25 m3 at a temperature of 95.0°C and a pressure of 1.05 atm. What temperature will the gas have at a pressure of 1.58 atm and a volume of 2.46 m3? A. 356°C B. 82.7°C C. 47.5°C D. 321°C

### chem

A very flexible helium-filled balloon is released from the ground into the air at 20. ∘ C . The initial volume of the balloon is 5.00 L , and the pressure is 760. mmHg . The balloon ascends to an altitude of 20 km , where the pressure is 76.0 mmHg and the temperature is...

### Physics

A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and bounces back up. ...

### College Chem

Oxygen gas has a Henry's law constant of 1.66*10^-6 M/mm Hg at 40 degree C when dissolving in water. If the total pressure of gass (O2 gas plus water vapor) over water is 1.0 atm, what is the concentration of O2 in the water in grams per milliliter? Pressure of the water ...

### Physics

When a person is given intravenous fluid, the bag containing the fluid is typically held about 1.2 m above the person's body. If the pressure in this fluid is just barely able to push the fluid into the person, what is the pressure in the person's blood? (The density of the ...

### Chemistry

A tank contains 0.450 kg of oxygen(O2) compressed into a volume of 2.32 L. Estimate the gas pressure (in atm) inside the tank at 5 degrees celsius. Do I convert 0.450 kg from grams to moles, and if I do, do I use the molar mass of oxygen?

### Chemistry

If 560.70 g of water (22degrees) is displaced, what volume of gas displaced it? Any help would be greatly appreciated. I am thinking about using PV=NRT, but do I assume the value of the pressure is 1. Also using 560.7 do i determine the amount of moles?

### chemistry 106

A gas-filled balloon having a volume of 1.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 multiplied by 10-3 atm, respectively. Calculate the final volume of the ...

### chemistry

a 3.35g sample of solid silver reacted in excess chlorine gass to give a 4.45g sample of pure solid AgCl. the heat given off was 3.95kJ at constant pressure. what is th enthalpy of formation of AgCl?

### chemistry

A sample of only solid ammonium chloride was heated in a 1 L container at 500 C. At equilibrium, the pressure of NH3 (g) was found to be 1.75 atm. what is the equilibrium constant, Kc, for the decomposition at this temperature? R= .08206 L atm/K Mol NH4CL (s) <---> NH3(g...

### chemistry

If 0.0490 mol of solid CaCO3 and 380 mL of 0.135 M aqueous H2SO4 are reacted, what volume (L) of gaseous CO2 measured at 1.1 atm pressure and 301 K is produced. H2SO4(aq) + CaCO3(s) → CO2(g) + CaSO4(s) + H2O(l)

### chemistry

The organic compound di-n-butyl phthalate, C16H22O4(l), is sometimes used as a low-density (1.046 g·mL–1) manometer fluid. Compute the pressure (in torr) of a gas that supports a 585-mm column of di-n-butyl phthalate. The density of mercury is 13.53 g·mL–1.

### Chemistry

Using the given boiling points, predict which compound has the higher vapor pressure at a given temperature. A. ethanol (C2H6O, bp 78 degrees C) or 1-propanol (C3H8O, bp 97 degrees C) B. hexane (C6H14, bp 69 degrees C) or octane (C8H18, bp 125 degrees C)

### Chemistry

In a constant-pressure calorimetry experiment, a reaction gives off 20.8 kJ of heat. The calorimeter contains 150 g of water, initially at 21.4 degrees Celsius. What is the final temperature of the water? The heat capacity of the calorimeter is negligibly small.

### Chemistry

A meteorological balloon contains 237. L of helium at 33. °C and 0.832 atm. If the volume of the balloon can vary according to external conditions, what volume would it occupy at an altitude at which the temperature is -57. °C and the pressure is 0.094 atm? (2 significant ...

### chemistry

What volume of oxygen gas can be collected at 0.565 atm pressure and 48.0◦C when 42.9 g of KClO3 decompose by heating, according to the following equation? 2 KClO3(s) ∆−−−−→2KCl(s) + 3O2(g) MnO2

### chemistry

What volume of oxygen gas can be collected at 1.26 atm pressure and 2.00◦C when 39.7 g of KClO3 decompose by heating, according to the following equation? 2 KClO3(s) ∆/MnO2 −−−−→ 2 KCl(s) + 3 O2(g) Answer in units of L.

### Chemistry

The air was in a cylinder equipped with the piston absorbs 565 duels of heat and expands from an initial volume of .10 l to a final volume of .85 L against an external pressure of 1.0 ATM what is the change an internal energy of the air within the cylinder

### chemistry

3.) One method used in the eighteen century to generate hydrogen was to pass steam through red-hot steel tubes. The following reaction takes place: 3Fe(s)+4H20(g)--->Fe3O4(s)+4H2(g) 1. What volume of hydrogen at STP can be produced by the reaction of 6.28 g of iron? 2. What...

### physics

The pressure at the bottom of a cylindrical container with a cross-sectional area of 46.5 cm2 and holding a fluid of density 480 kg/m3 is 115 kPa. (a) Determine the depth of the fluid. (b) Determine the pressure at the bottom of the container if an additional 3.00 10-3 m3 of ...

### Chemistry

I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Determine the pressure inside a televison picture tube with a volume of 3.5L that contains 2...

### Chemistry

A 500 mL metal cylinder holding 0.100 moles of helium gas is known to rupture at a pressure of 10 atmospheres. At what temperature, in °C, will the container fail? Here is what I came up with: T= (1.00mol x 0.0821 LxATM/KxMOL) / 10atm x 0.5L =0.01642K Convert to C: 0.01642K...

### Mole fraction of a vapor pressure?

If 0.380 mol of a nonvolatile nonelectrolyte are dissolved in 3.00 mol of water, what is the vapor pressure P(H2O) of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 C. I got this answer correct: 21.1 torr A solution is composed of 1.50mol ...

### Chemistry

How can you increase the concentration of the product (s) in each of these reactions by varying the temperature and pressure (caused by volume change)? 4NH3 + 5O2 <=> 4NO + H2O Delta H = -903.75 kJ Br2 + Cl <=> 2BrCl Delta H = 14.64 kJ Please help... With gaseous ...

### Physics

Hi I tried asking this question yesterday but still had some confusion.Since the area must be in cm^2. IP The weight of your 1440 kg car is supported equally by its four tires, each inflated to a gauge pressure of 30.0 lb/in^2 . What is the area of contact each tire makes with...

### physics

A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and bounces back up. ...

### physics

A ball of volume V=8 L is full of air with pressure higher than atmospheric pressure by Δp=2×10^4 Pa. The total mass of the ball and the air inside is 200 g. The ball is tossed up to a height h=20 m, then it falls down, collides with the ground, and bounces back up. ...

### chemistry

I am trying to find pressure. R=.0821 T=1273 K V=2 n=.0997 When I put .0997 in the PV=nRT equation I get 5.2 atm, and when I put in .09 I get 4.7 atm. Which answer should I put? Which is more accurate?

### Chemistry

A hot-air balloon has a volume of 4.000 x 10^5 L at 30 degrees celsius and a pressure of 748 mmHg. If the average molar mass of air is 29.0 g/mol, what is the mass of air in the balloon?

### Chemistry

1.) A closed 5.00 L container is filled with a mixture of 4.00 moles of hydrogen gas, 8.00 moles of oxygen, 12.0 moles of helium, and 6.00 moles of nitrogen. What is the pressure in this container at a temperature of 25 °C? 2.) A closed 5.00 L container is filled with a ...

### chemistry

If the concentration of pure o-xylene in hair above a pool of pure o-xylene is 200 g/m3 at 25 C which direction can o-xylene move vapor pressure of pure o-xylene is 0.00871 atm

### chemistry

Given: 2so2 + o2 -> 2so3 + 44kcal Which change increase the concentration of so4? a. increasing temperature b. increasing the concentration of o2 c. decreasing the pressure d. decreasing the concentration of so2

### chemistry

To determine the molecular weight of a liquid compound,1.56 grams of the compound is vaporized in a 0.555L container at 30ºC and the pressure is measured as 1.2 atm. What is the molecular weight of the compound?

### engineering

The flow system as shown in the Figure, the centrifugal pump(3500 R.P.M.) is delivering water at 100 gal/min and 70 °F into a boiler operating at a pressure of 35 psig. The water levels in the feed tank and boiler are constant. Because corrosion is expected to be negligible, ...

### Calculus

the drop in blood pressure of a typical patient who is given a certain medication is given by F(x)=0.028x^2(19-x) where x is the amount of medication in cubic centimeters. What is the maximum drop in blood pressure for this patient?

### math

What is the difference in pressure needed to lift water 15ft in a three inch pipe on the vertical and the pressure needed to push water 15ft in a 3 inch pipe on a 45 degree incline?

### Chemistry

The pressure of a gaseous mixture of NH3 and N2 decreased from 1.50 kPa to 1.00 kPa after the NH3 was absorbed from the mixture. Assuming ideal gas behavior, find the composition of the original mixture.

### Chemistry

The reaction b/t H2 and O2 yield water vapor and has a change of heat =-484kJ.Ho much PV work is done and what is the value of the change of E in kJ for the reaction of 0.50 mol of H2 with 0.25 mol of O2 amd atmospheric pressure of 1.00 , the volume change is -5.61.

### Chemistry

A hot air balloon has a volume of 3.𝑔80 x 105 L at 42 °C and a pressure of 754 mm Hg. If the average molar mass of air is 29.0 𝑚𝑜𝑙, what is the mass of air, in grams, in the balloon?

### GRAMMAR

Select the correctly punctuated phrases. Blood pressure 120/80, pulse 60, heart tones are normal. Blood pressure 120/80 pulse 60 heart tones are normal. Blood pressure 120/80, pulse 60 heart tones are normal.

### Pre-Ap Chemistry

This is my last question and this one really threw me for a loop. I know that the temp has to be converted to kelvin which would make it 315.4 What volume of oxygen gas can be collected at 0.683 atm pressure and 34.0◦C when 42.4g of KClO3 decompose by heating, according ...

### Physics

The 3.0 -diameter water line in the figure splits into two 1.0 -diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 and the gauge pressure is 50 .What is the gauge pressure at point B? I know we have to find P in kPa, but am ...

### Physics

The 3.0 -diameter water line in the figure splits into two 1.0 -diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 and the gauge pressure is 50 .What is the gauge pressure at point B? I know we have to find P in kPa, but am ...