(a) 334 torr in atm. (b) 3944 Pa in atm. (c) 2.4 atm in torr

Q: The normal maximum pressure exertedeby a human heart 120. torr.  Calculate the normal maximun…

A: Given, Pressure = 120 torr

Q: What is the ratio of the rate of effusion of helium gas to the rate of effusion of CO gas (2 sig…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: If 7.43 L of gas at 15°C and 4.66 atm is compressed at a pressure of 132 atm and 45°C, calculate the…

A:

Q: At 27 °C, 500 cc of H2, measured under a pressure 400 torr, and 1000 cc of N2, measured under a…

A:

Q: 2. A sample of He gas effused 5.3 times faster than an unknown gas, under the same conditions.…

A: Given: The Helium gas with atomic  mass of = 4 u.

Q: A neon sign is made of glass tubing whose inside diameter is2.5 cm and whose length is 5.5 m. If the…

A: Since we know that PV = nRT  where P = pressure  V = volume of gas n = moles of gas R = 0.0821  T =…

Q: On a certain winter day in Utah, the average atmospheric pressure is 650. torr. What is the molar…

A: Record the given data, T = 273- 25 = 248 K P = 650 torr = 650/760 = 0.855 atm

Q: Question attached

A: Temperature of N2O5 = 95oC   Pressure of N2O5      = 794 torr

Q: At 741 Torr and 44°C, 7.10 g of a gas occupies a volume of 5.40 L. What is the molar mass of the gas…

A: Given: Pressure is 741 torr Volume is 5.40 L Temperature is 44oC Mass is 7.10 g To find: Molar mass

Q: A bicycle tire is filled to a pressure of 110. psi at a temperature of 30.0oC. At what temperature…

A: Given : P1 = 110 psi P2 = 105 psi T1 = 30.0°C

Q: What is the mass of 1.75 L of isobutane (C,H,) gas at STP? Use atm as the standrard pressure unit.

A: Given;

Q: A gaseous hydrogen- and carbon-containing compound is decomposed and found to contain 82.66% carbon…

A:

Q: a rate of effusion th

A:

Q: suppose that 2.96 moles of heluim gas occupies a 73.3L tank what temp will the pressure in the tank…

A: Given, moles of helium gas = 2.96 mol            volume = 73.3 L            pressure = 550 mm Hg =…

Q: A 250MI stoppered The pressure of the torr. What would the the flask was transfe

A:

Q: A sample of Zn(s) is reacted with HCl(aq) to form hydrogen gas. The H2 gas bubbles out of aqueous…

A: Zinc metal ( Zn )  reacts with Hydrochloric acid ( HCl ) to produce Zinc chloride ( ZnCl2 ) and…

Q: You have produced 170 g of NHin a 5.0L tank at 400.0 C. What is the total pressure of the gasses?

A: The relationship between temperature, pressure, volume and number of mole is given by ideal gas…

Q: The pressure of gas was determined to be 0.9465 atm. What is the pressure reported in torr? In…

A: Given  Pressure = 0.9465 atm

Q: How can a unit of length such as millimeter of mercury(mmHg) be used as a unit of pressure, which…

A: The pressure is the force applied per unit area. Its SI unit is Pascal (Pa). It is a physical…

Q: what is the volume of a balloon (in L) that contains 0.607 moles of helium gas at 33C  and 203 torr?

A:

Q: of effusion th

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Q: A weather balloon has a volume of 650 L when filled with helium at 9 ∘C at a pressure of 390 Torr.…

A: Given: Initial Volume V1 = 650 L Initial Pressure P1 = 390 torr = 0.513 atm Initial Temperature T1 =…

Q: 258 mL sample of MEK , an industrial solvent, is found to have a mass of 0.599 g at 0.988 atm and…

A:

Q: 7. How many moles of a gas will a 700 ml flask hold at -100 °C and 860 torr?

A: Given: The volume of the gas(V)=700ml=0.7 L The temperature of the gas(T)=-1000C=173K The pressure…

Q: The density of 1.00 mol of an unknown gas at a temperature of -55°C and a pressure of 2,017 torr is…

A:

Q: What volume of ammonia measured at 35 C and 765 torr, will be produced from 2.70g of hydrogen?…

A:

Q: f a mixture of gases contained nitrogen at a pressure of 984 torr and carbon dioxide at 345 torr,…

A: According to Dalton's Law which states that the total pressure of the mixture of gases will be equal…

Q: A balloon will burst at a volume of 2.69 L. If it's partially filled at 15.2ºC and 69 cm Hg to…

A:

Q: What pressure (in atm) is exerted by a column of toluene (C7H8) 87.0 m high? The density of toluene…

A:

Q: The density of an unknown gas compound is 6.52 g./L at (STP) What is the molar mass of the gas?

A: Density of gas=6.52 g/L At STP Temperature=273.15K Pressure=1atm Molar mass of gas=?

Q: nole Ar and 3.5 mol CO,? The total pressure is 6.9

A: Mole fraction of CO2 = ( moles of CO2 / total moles )  Mole fraction of CO2 = ( 3.5mol / 3.5mol +…

Q: label all units, and circle the an 17. When 145 g of butane (C4H₁0) is burned in atmospheric oxygen,…

A:

Q: What is the ratio of the rate of effusion of helium gas to the rate of effusion of CO2 gas (2 sig…

A: The Scottish physical chemist Thomas Graham gives direct relation between rate of effusion of gas…

Q: B. Calculate the density of Freon 12, CF2CI2, at 30.0 °C and 0.954 atm.

A: Given: Pressure=0.954 atm Temperature=30+273.15K=303.15K To find: Density  Formula: PV=nRT

Q: If the total pressure of three gases is 6.75 atm, and nitrogen gas contributes 310 torr, oxygen gas…

A: We have given that Total pressure of mixture of three gases (PT) = 6.75 atm And we know the that 1…

Q: An inflated balloon with a volume of 1,393.7 cm is squeezed to half its original volume. If the…

A: There are different types of the gas laws which shows the relation between the different measuring…

Q: A balloon is inflated to a volume of 8.5 Lon a day when the atmospheric pressure is 1.013 har The…

A:

Q: At a particular pressure and temperature, nitrogen gas effuses at the rate of 79 mL/s. Using the…

A: Given information: Rate of diffusion of nitrogen gas = 79 mL/s Since the pressure and temperature of…

Q: If 351 mL of N2 at 34.7 oC and 653 torr is allowed to expand to 850 mL and 605 torr, what is the new…

A: Here given, Initial volume (V1) = 351 mL = 0.351 L Initial pressure (P1) = 653 torr = 0.8592 atm…

Q: If I have 0.4 moles of gas at a temperature of -35.2 0C, and a volume of 7 liters, what is the…

A:

Q: At constant temperature, a sample of 3.60 L of H2 at (a) in torr pressure units

A:

Q: An empty flask has a mass of 48.293g and 48.612g when filled with acetone vapor at 80°C and 728mmHg.…

A: Molecular weight of acetone can be calculated from the number of moles of acetone present.

Q: A weather balloon is filled with 0.295 m3 of helium on the ground at 18 degrees Celsius and 756…

A: According to combined gas law for an ideal gas with the same number of moles at two different…

Q: zinc metal reacts with aqueous sulfuric acid to form hydrogen gas. In an experiment, 201 mL of wet…

A: GIVEN: Volume of hydrogen gas=201ml=0.201 LTemperature of gas=27 degree celcius=300.15KPressure of…

Q: What is the mass of He gas that has a pressure of 855.0 torr, a volume of 22.5 Liters and a…

A: P = 855.0 torr = 1.125 atm V = 22.5 L  T = 35°C = 308 K  R = 0.0821 L.atm/mol.K  m = ? M = 4.00…

Q: A flask containing neon gas is connected to a closed-end mercury manometer. The mercury in the…

A: Given : Height of Mercury above that arm connected to flask of neon = 9.75 inches.

Q: What is the molecular weight of a gas if 500 mL weighs 10 g at -23 °C and 380 torr?

A: Given : Volume of gas= 500 ml             Mass of gas= 10g             Temperature  =-23oC…

Q: An open-end mercury manometer is used to measure the pressure of a confined sample of gas at 15 °C,…

A: Here in open side mercury level is down than the gas side.So gas pressure will be less than that of…

Q: If V=125ml at 755mmHg, FindV(ml) at 780mmHg. (Temp, n=constant)

A: In this question, we want to determine the Final Volume in mL at final Pressure 780mmHg.

Q: A gas was found to have a density of 0.0847 g/L at 17.0 °C and a pressure of 760 torr. What is its…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.