A sample of hydrogen gas is collected over water at a total pressure of 28 inches Hg at 22 oC.The vapour pressure of water at 22 oC is 19.8 mmHg. The partial presure of the H2 is?

Q: Which line segment represents an equilibrium between the liquid state and the gaseous state?

A: Considering the initial state of the compound be solid. At point "A" the compound is in solid state.…

Q: Use the following information to answer the question 21. In an experiment to determine the molar…

A: Mass of empty flask = 183.48 g Mass of flask and vapour = 183.69 g Volume of flask = 150 ml…

Q: The vapor pressure of methanol at 25 °C is 126. mmHg. Calculate the vapor pressure in atm and torr.…

A:

Q: A sample of 113 L of helium gas at 1360°C and prevailing barometric pressure is passed through…

A: Given, Volume in the container = 113L Temperature = 13600 C = 1633K Given mass of He = 0.120 g [That…

Q: A solution of carbon tetrachloride and acetic acid CH3COOH that is 90.% carbon tetrachloride by mass…

A: Given:

Q: If a 100-mL sample of a volatile liquid such as diethyl ether is introduced into a 250-mL flask…

A: When a 100-mL sample of a volatile liquid such as diethyl ether is introduced into a 250-mL flask,…

Q: 2. Toluene has a vapor pressure of 40.4 mm Hg at 4.4°C and 3166.0 mm Hg at 55.2°C. Solve for the…

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Q: Define that When open to the atmosphere, water is in phase equilibrium with the vapor in the air if…

A: When a wet T-shirt hangs in an open area, it eventually dries. A small amount of water left in a…

Q: The vapor pressure of liquid acetone, CH3COCH3, is 100. mm Hg at 281 K. A 0.128 g sample of liquid…

A: The pressure in the container when equilibrium is reached and all of the liquid will evaporate or…

Q: ((0.97 atm)(11.1 L\x(1 atm)= 23 psi A nitrogen dioxide sample has a volume of 7.0 L and pressure of…

A:

Q: Imagine the Mars rover actually finds liquid water on the surface of Mars. The rover analyzes the…

A: We can solve this problem by using Henry's law: pg = KH * Cg  Where, Cg = concentration of a…

Q: In determining properties such as solubility, melting point, and boiling point, intramolecular…

A: The forces which provide interaction including force of repulsion and attraction acting between the…

Q: 0.35 mol of ethanol and 0.65 mol of water are mixed at 25 oC.  What is the vapor pressure of the…

A: Raoult's law: Vapor pressure of component in the mixture is multiplied by its mole fraction of the…

Q: aux orig The average speed of an ideal gas molecule can be calculated using the equation below.…

A: Average speed of a molecule is directly proportional to square root of temperature and inversely…

Q: A solution is prepared by mixing 50 g of methanol (CH3OH) with 50 g of ethanol (CH;CH2OH). Use the…

A:

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.96.…

A:

Q: The normal composition for this foliar spray is 128 grams of calcium nitrate at 94.64v liters of…

A: Here we have to determine the change in vapour pressure of solution when 128 g Ca(NO3)2 is added to…

Q: California's automobile emission standards require that exhaust gases contain less than 237 parts…

A: Given, Concentration of of exhaust gas = 237 ppm CO percent = 1.32 % Standard atmospheric pressure ,…

Q: A volatile compound with a mass of 0.8822 grams is placed in an evacuated 0.250 L flask. The flask…

A:

Q: What phase of carbon dioxide exists at -120° and 10 atm? At 80° and 100 atm?

A: at -120° and 10 atm CO2 has solid phase .

Q: At 0°C the student measures the total pressure in the flask to be 102.1 K PA. At 0°C the student…

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Q: A typical aerosol can has a Maximum pressure of 145 psi which is about 10 times normal atmospheric…

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Q: Shown below are the vapor pressures of water (PH2O) at different temperatures: T(oC)       PH2O…

A: The given information is: Volume of hydrogen gas collected = 1595 mL. Total pressure = 762 torr…

Q: A mixture of two gases (gas X and gas Z) is pumped into a sealed container half-way filled with 5.0…

A: Total pressure = Pressure of X + Pressure of Z According to henry law, C= KHP C = Cpncentration of…

Q: A sample of gas collected over water at 42 degrees Celsius occupies a volume of one liter. The wet…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n =…

Q: What is the vapor pressure of water at 10 degree Celsius, at 25 degree Celsius And at 60 degrees…

A: Vapor pressure of water is the pressure at which the condensed state of water and water vapor are in…

Q: A 275 mL sample of CO2 is collected over water at 25 oC when the atmospheric pressure is 0.85 atm.…

A: In this question, we want to determine the number of moles of CO2 gas.  You can see details Solution…

Q: If the oxygen gas sample in #1 passed through a drier that decreased the pressure of the mixture to…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: Based on the graph which describes two liquids, A and B, select ALL of the FALSE statements. OA The…

A: The vapor pressure of solutions containing two liquid or more liquid components at a given…

Q: An unopened can of soda has an aqueous CO, concentration of 0.21 M at 25.0 °C. What is the partial…

A: Interpretation - An unopened can of soda has an aqueous CO2 concentration of 0.21M at 25oC. Then…

Q: Calculate the molality of a 5.14 M solution of sodium bicarbonate in water. The density of the…

A: The mole of solute present in one kilogram of the solvent is known as molality. The mole of solute…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.