9. What is the pressure of hydrogen gas collected over water at 21°C if the pressure of the mixture is 775 torr? Edit View Insert Format Tools Table 12pt v Paragraph v |BIU A v

Q: White phosphorus melts and then vaporizes at high tempera-ture. The gas effuses at a rate that is…

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

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A: Given : Volume = 300 ml Pressure = 685torr Mass of bulb = 1.45g

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A: Given that the pressure of the ocean is 8.4 atm. To convert the pressure to mm Hg and kPa units.

Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741. Torr.…

A: Answer: This question is based on ideal gas equation which is shown below: PV=nRTPVRT=nn=PVRT…

Q: 38. The volume of a steel tank is 438 dm³ and it is filled with 0.885 kg of O2. Calculate the…

A: Ideal gas equation is:- PV = nRT                                                  (or)…

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Q: A gas mixture contains 1.22 g N2 and 0.90 g O2 in a 1.58-Lcontainer at 24 ∘C. Calculate the partial…

A: Number of moles of nitrogen = given mass / molar mass = 1.22 g / 28.0134 g/mol = 0.04355 molNumber…

Q: Imagine that you have an ideal gas in a 5.70 L container, and that 1150 molecules of this gas…

A:

Q: 34. DETAILS Calcium hydride, Cat, reacts with water to form hydregen gas Caly(s) +2 H,O) - CatOHlaa)…

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Q: A gas mixture contains 1.25 g N2 and 0.85 g O2 in a 1.55 L con- tainer at 18 °C. Calculate the mole…

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Q: At an altitude of 36 km above the Earth’s surface, the temperature is about -44°C, and the pressure…

A: The information given in the question is as follows: Temperature, T = -44°C = -44 + 273 = 229 K…

Q: An unkown gas effuses 1.66 times more rapidly than Co,. What is the molar mass of the uknown gas?…

A: The correct option is - d. 16

Q: Which of the following statements is (are) correct? I. The average kinetic energy of the gas…

A: The relation between the rate of effusion and the molar mass is given by Graham's law; r1r2=M2M1

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A: Two gas cylinders of the same volume are taken such that one is filled with propane and the other…

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Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741. Torr.…

A:

Q: In a collision of sufficient force, automobile air bags respond by electrically triggering the…

A: Given data contains, Mass of sodium azide is 50.0-g. Temperature is 26°C=299.15 K. Total pressure is…

Q: Given the reaction: 2 Al (s) + 6 HCI (aq) --> 2 AICI3 (aq) + 3 H2 (g) A strip of aluminum of unknown…

A: Given data :  2 Al(s) + 6HCl(aq) ==> 1 AlCl3(aq) + 3H2(g)  Temperature = 22.0°C = 295 K  Volume =…

Q: A 6.0-L flask contains a mixture of methane (CH₄), argon,and helium at 45°C and 1.75 atm. If the…

A: Ideal gas equation:                                                                      PV=nRT…

Q: 9 43% l TEW LTE 12:49 PM Done 14 of 14 Bal's Law NChane gas scuplesa wume of 12iters at 770 torr…

A: Given, The volume of chlorine gas at 720 torr is 1.2 Liters. The volume at 1 atm pressure is:

Q: Hydrogen was collected over water at 21.4°C on a day when the atmospheric pressure was 741 Torr. the…

A:

Q: A balloon contains 30 L of helium gas at 100 kPa. What is the volume when the balloon rises to an…

A: Here given, Initial pressure (P1) = 100 KPa = 0.986923 atm (1 atm = 101.325 KPa) Initial volume (V1)…

Q: Calcium perbromate, Ca(BrO4)2 (m.w.= 327.9 g/mol) decomposes upon heating to release oxygen gas…

A: Given, molar mass of Ca(BrO4)2 is = 327.9 g. Temperature is = 50°C  Total volume is = 438 mL.…

Q: 2. If the excess salt is dissolved in water, it will reform carbamic acid. At 350K, carbamic acid…

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Q: O KINETICS AND EQUILIBRIUM = Valentina V Solving problems that mix equilibrium ideas with gas laws…

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Q: Which of the following gas laws allows the approximation of the absolute zero by extrapolation?…

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Q: Arrange the following in order of increasing pressure:   *low pressure 4.5atm 100kPa 300 mmHg…

A: Pressure : 4.5 atm  ; 100 kPa  ; 300 mmHg Arrange the pressure values in increasing orders = ?

Q: 11. When the volume of a gas increases at constant temperature: - the average kinetic energy…

A: 1.The average kinetic energy here refers to the average kinetic energy of the molecules of gas.The…

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A:

Q: 7.52 g of gas is stored in a 3.50 L container at 999 mm Hg and 298 K. What is the noble gas in the…

A: Using ideal gas equation we can figure out the molar mass of gas.

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A: Initial volume = V1 = 2.00 L Initial pressure = P1 = 100 kPa   Volume after expansion (final volume…

Q: What is the total mass of molecular oxygen in grams in a room measuring 4.0 m by 5.0 m by 2.5 m?…

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Q: 13. A 2.5-L flask at 15°C contains a miyture of Na. He and Ne at partial pressure of 0.32 au N2,…

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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 +…

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Q: Imagine that you have an ideal gas in a 4.70 L container, and that 2550 molecules of this gas…

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Q: - at STP in a 5.0 L container is made up of N2, Cl2, and Ar gases, where the mole fraction of d the…

A: In ideal gas there is no force of attraction, collision are elastic and pressure will generate by…

Q: Converting Pressure: 1. 85.2 atm to kPa - 2. 85.2 atm to Torr- 3. 85.2 atm to mm Hg -

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 2. A 10.0L flask contains 1.031g 0, and 0.572g CO, at 18°C, what is tha mole fraction of oxygen?

A: " Dear student , as you posted two different questions as per guidelines we shall solve first…

Q: Some Chem 16.1 students were tasked to perform the ideal gas experiment with  some modifications.…

A: The Answer to the following question is-

Q: Given the reaction: 2 Al (s) + 6 HCI (aq) --> 2 AICI3 (aq) + 3 H2 (g) A strip of aluminum of unknown…

A: Relationship between the pressure, volume, number of moles and temperature is expressed in terms of…

Q: In a collision of sufficient force, automobile air bags respond by electrically triggering the…

A: Each involved species reactant-product carries particular stoichiometric co-efficient. Such…

Q: .Calculate the total pressure of a mixture of gases in atm., each of which exerts the given partial…

A: We are authorized to answer one question at a time. Since you have not mentioned which question you…

Q: A Oi95l9 sample potassium reacts with exeess amccnits of Hydrochloric acid and it was colocted over…

A: Mass of potassium = 0.951 g No of moles of potassium = 0.951÷39 g/mol…

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.