Q3 Draw the phase diagram for metals (A. B) with melting points (1180°C, 1455°C respectively). They are completely soluble in each other in solid stale. Follow up the cooling of alloy with 60%% B: 1- Find the melting range of allov with 20% A (start of solidification, end of
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- For the alloy Mg-45 wt% Pb alloy at 500 C, what is the weight percentage of Pb in liquid?Consider 8.5 kg of austenite containing 0.52 wt% C, cooled to below 727 C (1341'F). (a) What is the proeutectoid phase? (b) How many kilograms each of total ferrite and cementite form? (c) How many kilograms each of pearlite and the proeutectoid phase form? See Animated Figure 10.284. Geologist also use binary phase diagram to show compositional change with temperature. These diagrams are described on pages 249-256 of MMS, and in your chemistry books. For the initial composition shown by an X, determine the original composition of the olivine (core) and the final composition of the solid - the rim. Use Fo/Fa percentages. Olivine Binary Phase Diagram Temperature "C 1990 1800 1600 1400 1200- 0 М035904 Fo Olivine 20 X Liquid 40 60 Weight % Fa 41205 100 Fe Fa Substances with >1 component melt over a range of temperatures core rim 3
- Determine the percentage Fe in a sample of limonite from the following data: -Sample : 0.5000g -KMnO4 used = 50.00 ml -1.000ml of KMnO4 is equivalent to 0.005317 g Fe -FeSO4 used = 6.00 ml -1.000ml FeSO4 is equivalent 0.009200 g FeOIn 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 atomsUse the following atomic masses (in g/mol):Mg = 24.31; O = 16; Ca = 40.08; C = 12.01; Na = 23; H = 1; N = 14.01; S = 32.06; Cl = 35.45; 2.) Limestone consists chiefly of mineral calcite (CaCO3). The carbonate content of 0.5413g of powdered limestone was measured by suspending the powder in water, adding 10mL of 1.392M HCl and heating to dissolve the solid and expel CO2. The excess acid required 39.96mL of 0.1004M NaOH for complete titration to a phenolphthalein end point. Find the % wt of calcite in limestone.
- A copper-nickel alloy of composition 45 wt% Ni - 55 wt% Cu is slowly heated from 1200 °C. What percentage of Ni is in the first liquid to form? Use the Cu-Ni equilibrium phase diagram shown below. 1500 Temperature (°C) 1455° 1400 Liquidus L 1300 1280° α + L Solidus 1200 1100 1085° 1240° α 1000 Cu 20 40 60 80 Ni Weight percent nickelComposition (at% Ni) 20 40 60 80 100 1600 2800 1500 Liquid 1453°C 2600 1400 Solidus line Liquidus line 2400 1300 a +L B 1200 2200 1100 2000 1085°C 1000 20 40 60 80 100 (Cu) Composition (wt% Ni) (Ni) Figure Q3a Phase diagram of the Cu – Ni system. 327°C 300 Liquid 232C 200 41 183°C 18.3 61.9 97.8 •C 31 100 21 14 40 60 100 (PD) Composition (wt% Sn) (Sn) Figure Q3b Phase diagram of the Pb – Sn system. (3) aungeadue Temperature (°F)A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700°C (1290°F) to 400°C (750°F).(i) At what temperature does the first solid phase form?(ii) What is the composition of this solid phase?(iii) At what temperature does the liquid solidify?(iv) What is the composition of this last remaining liquid phase?
- An alloy contains 70.8 mol % palladium and 29.2 mol % nickel. Express the composition of this alloy as weight percentage (wt %).a- Give the name for this type of phase diagram, and did the metal Pb soluble in metal sn? If it's not give the reason. b- Pointed the phases for this diagram. c- Draw the cooling curve for each of pure metals and alloys (62%Sn -38%Pb), ( 40%Sn -60%Pb). d- Determine the weight percentages of the phases for (20% sn -80% pb) at 200 C. e- What is the main reaction for this diagram and at which temperature the reaction will happened? f- Draw the micro structure of the main reaction 327 232 183 0% Sn 100% Pb 62% Sn 38% P. 100% Sn 0% Pb Inceasing percentage by mass of tinA 100% 7:06 PM Wed Jan 29 ... Unanswered •1 attempt left • Due on Jan 30 What is the boiling point of a 0.35m AIC13 solution? Kb(H2O) = 0.52 °C·kg/mol 99.27°C B 100.18 °C 0.18 °C D 100.73 °C 0.73 °C Submit ш