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What effect will adding CO2(g) have on this: CO2(g) + C(solid graphite) <=> 2 CO(g).
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- what mass in grams of Na2S2O3 is needed to dissolve 4.7 g of AgBr in a solution volume of 1.0 L given that Ksp for AgBr is 3.3 x 10^-13 and Kf for [Ag(S2O3)2]^3- is 4.7 x 10^13?[6] Which of the following may have caused the formation of bands of the components? (base on the picture provided) a.Overloading of the samples b.Use of wrong mobile phase c.Chamber is unsaturated d.Both a and b e.All of the aboveThe melting point of TiCl4 (-24°C) lies below those ofTiF4 (284°C) and TiBr4 (38°C). Explain why by considering the covalent-ionic nature of these compounds and theintermolecular forces in each case.
- AZ91 alloy; a) What is its chemical composition? b) Which of the strength increasing methods are suitable and which are not? Explain c) Is nitration suitable as one of the surface hardening methods? Please explainE0 values for Ce4 + / Ce3 + and Fe2 + / Fe values are +1.72 and - 0.4 V, respectively. What conclusion can you draw from these data?Cite the overall reaction for the extraction of (a) Fe, (b) Al, and (c) Mg from their corresponding metal oxides when coupled with the oxidation of C (s) to CO (g). Which of these metals can be extracted from its oxide at 1800 °C?
- 1. What are the practical implications of alloying in carbon and alloy steels? 2. Make use of drawings of segments of the Fe-Cr phase diagram to illustrate the reason for the existence offerritic, martensitic and austenitic stainless steels by also noting the influence of specific alloying elementswhere-applicable. .A scientist was tasked to extract Fe from an aqueous suspension that contains 106 g of Fe2O3. The following steps detail the transformation of Fe2O3 (aq) to elemental iron: I. Enough sulfur trioxide gas was bubbled to Fe2O3 aqueous suspension to completely yield ferric sulfate. II. Then, 5.00 M nitric acid was added to ferric sulfate yielding an aqueous solution of ferric nitrate. III. Excess magnesium powder was added to the aqueous solution of ferric nitrate precipitating the solid iron ----- a. Write the balanced chemical reaction and the type of chemical reaction for [I], [II], [III]. Do not forget to indicate the states of the reactants and products (s, l, g).(CHOICES: COMBINATION, SINGLE DISPLACEMENT, DOUBLE DISPLACEMENT) b. What is the final mass of iron? Express final answers in 3 significant figures. c. High-concentration HCl is supposed to be added at the last part of the procedure. Briefly state its purpose.if we use KMnO4 and H3Po4 and MnSO4 for tritation of fecl3 and calculation of. Fe2+ what suitable ratio for tritation
