Propose a chloride salt with chemical formula XCI that has a higher melting point than any...
7. Salts-ionic compounds-also exist in solid form, and ionic charges hold them together. (That should trigger some Coulomb's Law flashbacks...) Based on this, rank the melting points—1 for the lowest melting point to 5 for the highest melting point-for the substances below. Remember to consider both the magnitude and the distance separating (i.e., size of) the ions. NaCl RbBr NaBr KI KBr Propose a chloride salt with chemical formula XCl that has a higher melting point than any of these....
6. In a particular kind of steel (one of the Standard 300 series austentic grades, for you steel-heads), the composition by mass is roughly 0.15% C, 1.00% Si, 2.00% Mn, 0.045% P, 0.030% S, 17.00% Cr, 7.00% Ni, and the rest Fe. What is the ratio of iron atoms to carbon atoms in this steel? Please use integer numbers for your ratio (for example, 7:4.) 7. Salts-ionic compounds-also exist in solid form, and ionic charges hold them together. (That should...
(a) Provide a brief explanation for why strontium chloride as a higher melting point (874 ºC) than lithium chloride (605 ºC). Provide a brief explanation for why strontium chloride as a lower melting point than boron nitride (2,973 ºC). (3) (b) H2O (MW = 18.0 g/mol) boils at 100 ºC, HF (MW = 20.0 g/mol) boils at 19.5 ºC, while H2Se (MW = 81.0 g/mol) boils at –41.3 ºC. Provide an explanation for these observations based on the type and...
Which compound has a lower melting point, explain the chemical basis of choice. a. palmitic (a saturated fatty acid) or b. palmitoleic acid (a cis-monounsaturated fatty acid)
8. a. Explain why the melting point of pure phthalic acid is higher than that of pure napthalene, when the two compounds have nearly the same molecular weight. b. Explain why the melting point of pure hexane is hgiher than that of pure cyclo-hexane, when the two compounds have nearly the same molecular weight. (Hint: reffer to structures)
Mandelic acid has two hydroxyl groups; yet its melting point is lower (119 oC) than the melting point of benzoic acid (122 oC). Explain.
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight 2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
Explain why the melting point of pure hexane is lower than that of pure cyclohexane when the two compounds have nearly the same molecular weight.
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
. 1. Is the melting point of substance A (a) greater than, (b) less than or (c) equal to the melting point of substance B? Explain your reasoning. 2. Is the specific heat of substance A in its solid state (a) greater than, less than, or (c) equal to the specific heat of substance B in its solid state? Explain your reasoning. 3. Is the latent heat of fusion of substance A (a) greater than, (b) less than or (c)...