Numerade

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Aparna Shakti

Numerade educator

If an aqueous solution is 3.92% (w/v) in sodium chloride, , how many grams of sodium chloride are there in a liter of solution? g

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Daniel Gosser

Numerade educator

How many grams of zinc iodide, , are required to make a 9.16 %(w/v) aqueous solution in a 250. mL volumetric flask? g

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Jenny Wu

Numerade educator

An aqueous solution of potassium sulfate, , is made by dissolving 35.1 grams of potassium sulfate in sufficient water in a 500. mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the weight/volume percentage of potassium sulfate in the solution? Weight/volume percentage = %

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Nicholas Mogoi

Numerade educator

A mixture of carbon dioxide and oxygen gases is maintained in a 5.97 L flask at a temperature of 59°C. If the partial pressure of carbon dioxide is 0.341 atm and the partial pressure of oxygen is 0.392 atm, what is the total pressure in the flask? atm

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David Collins

Numerade educator

Use the following vapor pressure data to answer the questions: Liquid Vapor Pressure, torr Temperature, °C Cd 10 486 Al 10 1780 (1) In which liquid are the attractive forces the weakest ? (2) Which liquid would be expected to have the highest heat of vaporization?

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David Collins

Numerade educator

Use the following vapor pressure data to answer the questions: Liquid Vapor Pressure, torr Temperature, °C A C2H5SH 400 17.7 B C6H14 400 49.6 (1) In which liquid are the intermolecular attractive forces the weakest ? (2) Which liquid would be expected to have the lowest vapor pressure at 5.0 °C?

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Brooke Smith

Numerade educator

What type(s) of intermolecular forces are expected between BeI2 molecules? Indicate with a Y (yes) or an N (no) which apply. dipole forces induced dipole (London dispersion) forces hydrogen bonding

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Nicholas Mogoi

Numerade educator

A 0.945 mol sample of methane gas is collected at a pressure of 269 mmHg and a temperature of 26.0°C. The volume of the sample is L.

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Nicholas Mogoi

Numerade educator

An 0.614 mol sample of xenon gas at a temperature of 15.0°C is found to occupy a volume of 28.8 liters. The pressure of this gas sample is atm.

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Anna D.

Numerade educator

A 1.15 mol sample of oxygen gas is collected at a pressure of 737 mmHg and a temperature of 13.0°C. The volume of the sample is L.

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