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- 6. What is the composition, in weight percent, of an alloy that consists of 6 at% Pb and 94 at% Sn?Chalcopyrite (CuFeS2), is an important source of copper. A typical chalcopyrite ore contains about 0.75% Cu. What volume of sulfur dioxide at 25ᵒC and 1 atm pressure is produced when one boxcar load ( 4 x 10^3 cu.ft) of chalcopyrite ore (density = 2.6 g/cu.cm) is roasted? Assume all the sulfur in the ore is converted to SO2 and no other source of sulfur is present.The maximum solid solubility of carbon in ferrite occurs at 0.022 wt% C and 727 ° C, the eutectoid composition is 0.76 wt% C, the maximum solid solubility of carbon in austenite occurs at 2.14 wt% C and 1147 ° C, and the cementite composition is 6.7 wt% C. For 2122 g of a 3.2134 wt% C steel at 726 ° C, what will be the mass of carbon present as part of a compound?(a) 67.9 g(b) 74.2 g(c) 58.7 g(d) 83.5 g
- Consider an alloy of 57 wt% FeO and 43 wt% MgO. a. Calculate the composition of the alloy in atomic percent b. Calculate the amount of solid and liquid if the mass of the alloy is 350 kg>The elements Mn and Si are added to steel to improve its properties in electric motors, and some C is often found as a detrimental impurity. Which of these elements fills interstitial holes in the Fe lattice and which substitutes for the Fe in the lattice?(g) Differentiate between hypereutectoid and hypoeutectoid alloys
- 4. Calculate the composition, in weight percent, of an alloy that contains 218.0 kg titanium, 14.6 kg of aluminum, and 9.7 kg of vanadium.An alloy contains 70.8 mol % palladium and 29.2 mol % nickel. Express the composition of this alloy as weight percentage (wt %).2. Calculate the composition in weight percent of an alloy that contains 200kg of Fe, 400 gm of C and 2.5 kg of Cr
- In a given alloy of Nb-Vd: * in the given 24 wt % Nb - 76 wt % Vd alloy with the density of the pure Nb of 8.57 g/cm' and density of the pure Vd of 6.10 g/cm', what is the number of Nb atoms per cubic centimeter (cm') if the atomic mass of Nb is 92.90638 g/mol? a. 1.5728 x 10° Nb atoms b. 1.01945 x 1022 Nb atoms c. 2.81822 x 1014 Nb atoms d. 1.24626 x 1020 Nb atomsIf 55 g of SiO2 glass is placed into 111 L of 0.032 M HF, is there enough HF to dissolve all of the glass? Determine which substance is the limiting reagent and calculate how much of the other reagent is left if the reaction proceeds to completion.The density of an alloy of iron (54.7%), nickel (45.0%) and manganese (0.3%) is 8.17g/cm3. Calculate how many iron atoms are in a mold of this alloy with dimensions of 10.0 cm x 20.0 cm x 15.0 cm. (Fe: 55.85 g/mol)