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Concept explainers
(a)
Interpretation:
The ferromagnetism and paramagnetism needs to be compared.
Concept introduction:
Ferromagnetism show strongly magnetized ferromagnetic substances when placed in magnetic field. Paramagnetism show weakly magnetized paramagnetic substances when placed in magnetic field. Both ferromagnetic and paramagnetic substances are magnetized in the direction of the induced field.
(b)
Interpretation:
The process of roasting and reduction needs to be compared.
Concept introduction:
In roasting, sulfide ores are heated at higher temperatures to extract metal from it. Reduction is a chemical process in which electrons are gained and oxidation state of the species decreases.
(c)
Interpretation:
The hydrometallurgy and pyrometallurgy needs to be compared.
Concept introduction:
Hydrometallurgy uses aqueous solution for the extraction of metals from its ores whereas pyrometallurgy process involves the physical transformation of materials to form valuable metals.
(d)
Interpretation:
The chromate and dichromate need to be compared.
Concept introduction:
Both chromate and dichromate are oxyanions of chromium. In chromate, there is 1 Cr atom and in dichromate there are 2 Cr atoms present. The oxidation state of Cr is same in both the ions.
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Chapter 23 Solutions
Selected Solutions Manual For General Chemistry: Principles And Modern Applications
- Problem 3-42 Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond: (a) Draw a Newman projection of the most stable conformation. (b) Draw a Newman projection of the least stable conformation. Problem 3-44 Construct a qualitative potential-energy diagram for rotation about the C-C bond of 1,2-dibromoethane. Which conformation would you expect to be most stable? Label the anti and gauche conformations of 1,2- dibromoethane. Problem 3-45 Which conformation of 1,2-dibromoethane (Problem 3-44) would you expect to have the largest dipole moment? The observed dipole moment of 1,2-dibromoethane is µ = 1.0 D. What does this tell you about the actual conformation of the molecule?arrow_forwardGas Law Studies 1. Mass of zinc Determination of 0.899 2) Moles of zinc 0.01361 mol 3.) Moles of hydrogen 00? ← I was told to calculate this number from mole of zinc. 350m So does that mean it will be 0.01361 mol too? 4 Volume of water collected (mL) 5) VL of water collected (Liters) 0.350 L 6) Temp of water collected (°C) 7) Temp of water collected (°K) 8) Atmospheric pressure (mm) 9) Vapor pressure of water (mm) 10) Corrected pressure of hydrogen 20% 29°C 764.0mm Hg (mm) 17.5mm 11) Corrected pressure of hydrogen (atm) 12) Experimentally calculated value of 19 13. Literature value of R 14) % Error 15) Suggest reasons for the % error (#14)arrow_forwardNo wedge or dashes. Do proper structure. Provide steps and explanation.arrow_forward
- 10 Question (1 point) Draw curved arrow notation to indicate the proton transfer between NaOH and CH3CO₂H. 2nd attempt :0- H See Periodic Table See Hint Draw the products of the proton transfer reaction. Don't add a + sign between the products.arrow_forwardProvide steps and explanation please.arrow_forwardProvide steps to name and label for understanding.arrow_forward
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