Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Choose the substance with the highest boiling point.
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CF 2H 2 |
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F 2 |
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H 2O |
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H 2S |
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NBr 3 |
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- The substance nitrogen has the following properties: Normal melting point: 63.2 K Normal boiling point: 77.4 K Triple point: Critical point: 0.127 atm, 63.1 K 33.5 atm, 126.0 K A sample of nitrogen is initially at a pressure of 39.8 atm and a temperature of 81.1 K. The pressure on the sample is reduced to 0.127 atm at a constant temperature of 81.1 K. Which of the following are true? (Select all that apply.) The sample is initially a liquid. One or more phase changes will occur. The gas initially present will solidify. The final state of the substance is a gas. The final state of the substance is a solid.arrow_forwardBasing on the provided diagram, what is the normal boiling point of this compound?arrow_forwardThe ionic compound, CsBr, forms a body centered cubic structure (see below) where the anions occupy the corners of the crystal (red) and the cations the body centered position (green). If the ionic radius of Cs +, Br − are 169 pm and 195 pm respectively, what is the density (in g/cm 3)?arrow_forward
- Calculate the heat required to convert 22.2 g of propyl alcohol, C3H3O, from a solid at -141°C into the gaseous state at 115°C. The normal melting and boiling points of this substance are -127°C and 97°C, respectively. The heat of fusion is 86.2 J/g, and the heat of vaporization is 694 J/g. The specific heats of the solid, liquid and gaseous states are, respectively, 2.36, 2.83 and 1.76 J/g/K.arrow_forwardThe ionic compound, CsBr, forms a body centered cubic structure (see below) where the anions occupy the corners of the crystal (red) and the cations the body centered position (green). If the density of the compound is 4.44 g/cm 3 and the ionic radius of Cs + is 169 pm, what is the ionic radius of Br − in pm?arrow_forwardCalculate the heat released when 25.0 g of steam becomes liquid water at 100.0°C. The molar heat of vaporization of water is 4.07 x 10 4 J/mol.arrow_forward
- Choose the substance with the highest vapor pressure at a given temperature. O SiS2 O CH3SCH3 RBCI O BF3 O SbH3arrow_forwardA 0.554 g sample of steam at 105.5 ∘C is condensed into a container with 5.84 g of water at 14.0 ∘C. What is the final temperature of the water mixture if no heat is lost? The specific heat of water is 4.18 J g⋅ ∘C, the specific heat of steam is 2.01 J g⋅ ∘C, and Δ?vap=40.7 kJ/mol.arrow_forwardCopper, Cu, crystallizes in a face centered cubic unit cell. The density of the metal is 8.96 g/cm 3. A scientist believes that the radius of one Cu atom is 1.321 x 10 - 8 cm. What is the length of cell, calculate the volume of the unit cell by cubing it, calculate the mass of a unit cell, and What is the mass of each atom? He uses this number to calculate Avogadro's number. What number does he get? (Hint: It is not 6.02 x 10 23.).arrow_forward
- According to this phase diagram, the normal boiling point of the substance in degree Celsius is: 100 114 0.118 184arrow_forward2. Organic Compounds CH₂ OH COOH + OH Listed in order from the compound that has the lowest boiling point to the compound that has the highest boiling point, the order would be + COOH ◆arrow_forward
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