1. A 50wt% Pb-50wt% Mg alloy is slowly cooled from 700°C to 400°C. (a) At what temperature does the first solid phase form? (b)What is the composition of this solid phase? (c) At what temperature does the liquid solidify completely? (d)What is the composition of this last remaining liquid phase? Temperature (°C) 700 600 500 400 300 200 100- 0 (Mg) 0 20 40 Composition (at Pb) 10 20 40 70 100 T 60 Composition (wt% Pb) Mga Pb 1200 1000 400 200 Mg-Pb 100 (Pb) Temperature F
Q: V 0 marks Window HW: Brooke Jeffers 06 pts 0 Help achieve.macmillanlearning.com Question 4 of 35 O…
A: Solution
Q: This is a Brønsted-Lowry acid-base reaction. Draw structures for all the products, showing any…
A: Step 1: Step 2: Step 3: Step 4:
Q: Please correct answer and don't use hand rating
A: Step 1: Face-centered cubic (FCC) structure:In a FCC lattice, each unit cell contains 8 corner atoms…
Q: 6 1 point The amount of heat required to melt 0.02mg of H2O is 12.3J and the amount of heat required…
A: The question explains the mass and heat values involved in water melting. We can divide the domains…
Q: hello. i attached image of the question below
A: Resonance structures are alternative Lewis structures for the same molecule that depict the…
Q: For the Lewis acid-base reaction: Draw the skeletal structure of the product(s) for the Lewis…
A: Step 1: Step 2: Step 3: Step 4:
Q: not use ai please
A: Step 1: Step 2: Step 3: Step 4:
Q: Please correct answer and don't use hand rating
A: Let consider the number of moles of H3PO4=x mol Now, from the molecular formula H3PO4 we can write,1…
Q: With explanation and don't use AI
A: Approach to solving the question: Detailed explanation: Examples: Key references:
Q: 1) Name the following Molecules CH3 Η مام Br Br H H&C Br Η
A: Step 1:(1) 2-methylcyclopentanal Step 2:(2) 2-methylhex-3-en-2-one Step 3:(3) 2 methyl Cyclohexanal…
Q: What is the activation energy of a reaction if it has the following rate constants? Rate…
A:
Q: Does the following reaction favor the reactants or products? H2O + + -NH3 H 3 O + NH2
A: Step 1: The reaction would hardly move forward because the O is more electronegative atom than N .…
Q: Which are acid-base reactions according to the Brønsted-Lowry theory? CH 3 I CH3-C+ CH3 Br-Br: +…
A: The Brønsted-Lowry theory defines an acid as a substance that can donate a proton (H+) and a base as…
Q: Organic Acids and Bases Drawing the mechanism of an organic acid-base reaction Complete this…
A:
Q: Use standard free energy data from the table below to calculate the standard free energy change for…
A: The problem is asking us to calculate the standard free energy change (ΔG°) for the reaction of…
Q: In the concentration range of 1 to 100 µg/mL P , phosphate suppresses the atomic absorption of Ca in…
A: Explanation:In the concentration range of 1 to 100 µg/mL of phosphate (P), phosphate ions suppress…
Q: Convert each amine to a reagent that undergoes a Hofmann elimination. Show the major Hofmann…
A: To prepare a reagent that undergoes Hofmann elimination, the amine is reacted with excess methyl…
Q: How many atoms are contained in a sample of krypton, Kr, that weighs 8.38 g? one
A: Given:Mass of Kr = 8.38 g (3 significant figures) Find:Number of…
Q: help please answer in text form with proper workings and explanation for each and every part and…
A: Detailed explanation:A phase diagram visually shows the relationship between the temperature and…
Q: Can you please circle the colvalent bonds, so I know which ones they are.
A: Lisinopril is an antihypertensive drug that belongs to the class of ACE inhibitors. To answer the…
Q: not use ai please don't
A: Step 1:The correct procedure for purifying a compound by recrystallization involves a series of…
Q: Need experts solution only
A: Step 1:The lowering in freezing point is a collegiate property . The freezing point of water is…
Q: C. If the specific heat of a metal is 0.850 J/g-°C, what is its atomic weight? (Hint: use the Law of…
A:
Q: None
A: 1:Explain briefly how the parameters are determined experimentally.Step 2:What mechanistic…
Q: C. + draw 3 additional contributors
A: Here are the drawn structures representing the resonance forms of the molecule. You can view and…
Q: Consider the reaction A -> product Include units in answer. What is the best approximate rate at…
A: In chemistry, the rate of a reaction is the speed at which a chemical reaction happens. It is…
Q: 1. A) Draw all resonance structures for this compound (where all atoms have a filled valence shell).…
A:
Q: 13.27 (a) Draw all constitutional isomers formed by monochlorination of each alkane with Cl₂ and hv.…
A: A) B)
Q: Calculate the free energy of hydrolysis of ATP in a rat liver cell in which the ATP, ADP, and Pi…
A: SOLUTION.
Q: Please correct answer and don't use hand rating
A: Given data,Consider the dimerization reaction:2Akb⇌kaA2Kinetic…
Q: Please correct answer and don't use hand rating
A: Part (b) - Calculation for Substance QGiven Data:Molecular weight of Q = 132.8 g/mol Melting…
Q: an Learning pts estion 3 of 35 > Chapter 4 HW-General, Organic, and Biological Chemistry for Health…
A: Alkanes are hydrocarbons, meaning they are composed of hydrogen (H) and carbon (C) atoms. They are…
Q: Please correct answer and don't use hand rating
A: Given value of ∆H = 25.00 kJ/molGiven value of ∆S = 262.0 J/mol.K . In kJ/mol.K we can write it as…
Q: 1. Draw all the important resonance structures for the following ion showing all lone pairs of…
A: Step 1:Sulfonic acids are more acidic than carboxylic acids Due to stability of resonance structures…
Q: The freezing point of 42.30 g of a pure solvent is measured to be 43.64 °C. When 2.84 g of an…
A:
Q: 7. Draw all reasonable resonance forms for the following compounds and answer part e. Draw your…
A: All resonance forms are drawn in these images with proper use of arrows.
Q: 33. The reaction I(aq) + OCI (aq) →10¯(aq) + CI¯¯(aq) was studied, and the following data were…
A: Thank you.
Q: not use ai please
A: Given:Mass of the gas = m = 0.460 g (3 sig fig)…
Q: You and 3 friends decide to "road-trip to San Francisco for a 3-day weekend in your dad's original…
A: First, we need to calculate the total amount of gas needed for the trip. This can be done by…
Q: Caffeine is an aromatic compound. Using resonance structures, show how the sixmember ring can be…
A: Step 1: Step 2:In the six-sided ring, all the nitrogen atoms are sp² hybridized.The lone pairs of…
Q: 3. In the N2 molecule, draw the molecular orbitals (MOS) that will form between the pair of orbitals…
A:
Q: Please correct answer and don't use hand rating
A: NOTE: Resonance structures:Resonance structures are a set of two or more Lewis structures that…
Q: draw resonance strctures for each of these structures please
A: Resonance Structures: Resonance structures are different Lewis structures for the same molecule or…
Q: Please correct answer and don't use hand rating
A: GIVEN DATA:Maximum safe pressure inside the vessel (Pmax) = 1.20 MPa.Mass of dinitrogen…
Q: help please answer in text form with proper workings and explanation for each and every part and…
A: Step 1:To determine how long it will take for 90% of the reactant to disappear, we need to apply the…
Q: Write what you do in the lab step by step: Choose two pieces of glassware which will be a 50 mL…
A: Approach to Solving the Question:Identify the key variables: Determine the mass of the water and the…
Q: 13.47 Draw the products formed in each reaction and include the stereochemistry around any…
A: Step 1:An alkane's hydrogen atom is converted to a halogen to form a halogen alkane. Justification…
Q: 9. Give the IUPAC name or skeletal structure for each alcohol below, then classify each as primary,…
A: Alcohols are classified based on the carbon atom to which the hydroxyl group (-OH) is attached. If…
Q: Please correct answer and don't use hand rating
A: Plan to solve:Determine the percent composition by mass of the component following the formula.Mass…
Q: In a Li-ion battery, emf is 3.45V. For 1 mol of cathode reactants LiFePO4 that is fully charged, its…
A:
Step by step
Solved in 2 steps with 1 images
- Scence Midterm Summ X Material%20Science_Midterm%2 x ewer?url=https://ttu-storage.s3.eu-central-1.amazonaws.com/account 1/attachments/390676/Ma ence Midte 02021.pdf Open with Google Docs 5. Iron has a BCC crystal structure, an atomic radius of 0.124 nm, and an atomic weight of 55.85 g/mol. Compute its theoretical density: 6. Below is a unit cell for a hypothetical metal. (a) To which crystal system does this unit cell belong? 40nm 030 nm 0.30 nm (b) What would this crystal structure be called? 1 1 2 7. Sketch a tetragonal unit cell. and witnin that Page Hocations of the point: DELL12 (a) (b) Describe how you can obtain the integrated form of the Clapeyron equation as below. State any assumptions you have to make. Afus H (T-T) P₂≈ P₁+ AfusV T₁ The heat of fusion (Afus H) of Hg at its normal melting point (-38.9 °C) is 2.82 cal.g¹. The densities of Hg(s) and Hg(1) at -38.9 °C and 1 atm are 14.193 and 13.690 g cm Estimate the melting point of Hg at 100 atm using the result in (a). respectively. Ans 234.8K or -38.4°CAn alloy contains 70.8 mol % palladium and 29.2 mol % nickel. Express the composition of this alloy as weight percentage (wt %).
- Sulfur exhibits two solid phases, rhombic and monoclinic. Use the accompanying phase diagram for sulfur given below to answer the questions that follow. (A). How many triple points are in the phase diagram? (B). What phases are in equilibrium at the topmost triple point? (C). How many phase transitions are there when rhombic sulfur at 1 atm and 80°C is heated to 500°C at constant pressure?Topic: Equilibrium Phase Diagram QUESTION 1 A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700C to 400C. (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase? Composition (at% Pb) 10 30 40 70 100 700 1200 600 a +L Ma Pb M 1000 500 800 400 Mg Pb 600 300 400 200 a + MgPb 100 MgPb 200 MgPb 20 40 60 100 (Mg) Composition (wt% Pb) (Pb) 1 (5) aungeedueConsider 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 10.28
- 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?Phase change properties of pure substances Cu C6H12 C (C6H5CH₂)₂0 (CH3CH₂)20 CH3CH₂OH (CH₂OH)2 NH₂COH Au C C6H14 H₂ copper cyclohexane diamond dibenzyl ether diethyl ether ethanol ethylene glycol formamide gold graphite hexane hydrogen 1084.62 6.7 4440 1.8 -116.22 -114.14 -13.0 2.57 1064.18 4489 -95.27 -259.16 2560 80.7 298 34.4 78.24 197.5 217 2836 3825 68.72 -252.879 0.385 1.841 0.51 2.369 2.438 2.394 2.389 0.129 0.709 2.27 14.304 13.26 2.68 -- 7.19 4.931 9.96 8.44 12.55 117.4 13.08 0.12 29.97 45.6 26.52 38.56 50.5 60.2 324 28.85 0.9 280.3 193.7 242 446 -- 234.4 -240.212 40.2 35.9 61.7 80 29.9 12.6931. The data table below represents the properties determined by the analysis of substances A, B, C, and D. Substance Melting Point (°C) Boiling Point ("C) Conductivity A -80 -20 none 20 190 none 320 770 as solid D in solution 800 1250 Which substance is an ionic compound? (1) A (2) В (3) С (4) D 32. A chemist performs the same tests on two homogeneous white crystalline solids, A and B. The results areshown in the table below. Solid A Solid B Low, decomposes at 186°C Melting Point High, 801°C Solubility in H,0 (grams per 100.0 g H,0 at 0°C) Electrical Conductivity (in aqueous solution) 35.7 3.2 Good conductor Nonconductor The results of these tests suggest that (1) both solids contain only ionic bonds (2) both solids contain only covalent bonds (3) solid A contains only covalent bonds and solid B contains only ionic bonds (4) solid A contains only ionic bonds and solid B contains only covalent bonds
- Q3 Draw the phase diagram for metals (A. B) with melting points (1180°C, 1455°C respectively). They are completely soluble in cach other in solid stale. Follow up the cooling of alloy with 60% B: 1- Find the melting range of alloy with 20%A (start of solidification, end of solidification). 2- 2- Find the Percent, chemicals composition of liquid and solid at 1300°C for alloy with 60%B 3- Draw the microstructure for alloy 30% B at room temperature.2. A spherical metallic nanoparticle of diameter di = 100 nm melts at Tmi = 900 K. A smaller spherical nanoparticle of the same metal, of diameter dz = 50 nm, melts at Tm2 = 800 K. a) Explain why the smaller nanoparticle melts at a lower temperature. b) Calculate the melting point of the metal in bulk form.(aq) # Al(s) -+ Mn?+ (ag) + Af# (ag) Express your answer as a chemical equation. Identify all of the phases in your answer.