You collect a sample of hydrogen gas in an inverted buret by displacement of water at 22.0 °C.  The buret could not be submerged deep enough in the water bath to equilize pressure.  The water level in the buret was 14.43 cm above the water level in the water bath.  The volume of gas in the buret was determined to be 32.60 mL.  If the current atmospheric pressure was 29.45" of Hg, what is the pressure (torr) of dry hydrogen in the buret? How many moles of hydrogen are in this sample?

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A: As per Dalton's law, volume and number of moles are directly proportional to each other.

Q: A 4.0 liter rigid, indestructible metal can is filled with nitrogen gas at 45 °C to a pressure of…

A:

Q: Chloroform is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

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Q: b. How many moles of hydrogen are in this sample?

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A: In a laboratory where gases are being collected, the atmospheric pressure is 753.5 mm Hg, and the…

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A: Kp=2.4 P(SO2)=0.58atm P(O2)=0.23atm P(SO3)=0.60atm

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A:

Q: A sample of nitrogen gas was collected via water displacement. Since the nitrogen was collected via…

A:

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

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A: Here we are required to find the total pressure of the system .

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A:

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Q: what was the volume of the sample?

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A: The reaction is given as, CaCO3 + 2 HCl →CaCl2 + H2O + CO2

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A:

Q: The total pressure within a closed vessel containing equal masses of hydrogen, helium, and argon gas…

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Q: The partial pressures of CH 4, N 2, and O 2 in a sample of gas were found to be 135 mmHg, 508 mmHg,…

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A:

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Q: The ideal gas law allows us to predict that: As the temperature of a gas increases, the volume of…

A: The ideal gas law allows us to predict that: As the temperature of a gas increases, the volume of…

Q: A 31.3 mL sample of an unknown, water-insoluble gas was collected over water at 20.4°C and a…

A: Given that: volume = 31.3 mL total pressure = 0.805 atm mass of liquid = 103.14 mg vapor pressure…

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Q: A mixture of He and CO2  is placed in a 7.5L flask at 22C. The partial pressure of the He is 2.2 atm…

A: Given data:

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.