Lab 1 report

Steels 2. This steel is used in railway wheels and tracks, gears, and crankshafts. * O High carbon steel O Low carbon steel Medium carbon steel Stainless steel 18. These are used in wide variety of applications owing to the properties like good fluidity, ease of casting, low shrinkage, excellent machinability, wear resistance and damping capacity.

Graphene, is a sheet of pure carbon with a thickness of 0.335nm. How many layers of graphene will be required to make 0.2 cm thick sheet?  (1nm = 1x  and 100cm =1m) A) 5.97 x 10^6 B) 5.97 x 10^7 C) 1.68 x10^6 D) 1.68 x10^7 E) 3.35 x10^6

Using the tensile test simulation tool (in the folder 7: Mechanical Properties of Metals), a. generate the stress-strain curve for aluminum b. Indicate the following points in the stress-strain curve for aluminum and give the corresponding values: • limit of proportionality • elastic limit • 0.2% offset yield stress (include the graph illustrating how this was determined) • ultimate stress • fracture stress c. Calculate modulus of elasticity. Show the complete solution. d. compare aluminum with nylon (include the related graph) and answer the following: • Which has higher tensile strength? Provide the necessary values to support the answer. • Which is stiffer? Support your answer with calculations.

K56. Show product.....

Question 7 Consulting the material safety data sheet is an essential element of the anticipation principle and, therefore, should only be done when planning for an experiment. O True O False

Fill in the blanks: Silica ____ has a larger surface area than particle type ___

8. Read the following burette. Burette reading %3D 14 15

BALANCING EQUATION 1. _ NH3 + _ H2SO4 --> __ (NH4)2SO4 2. _ Na3PO4 + _ KOH --> _ NaOH + _ K3PO4 3. _ MgF2 + _ Li2CO3 --> _ MgCO3 + _ LiF TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN.

3. You found a weird ceramic material on the street and wonders if it might be ok to use in a medical device. What technique can you use to figure out the chemical composition of the surface? What can you use to see what the surface looks like?

Weight percent tungsten 0 30 5060 70 80 3600 uLtt 90 100 3400 - 3422°C 3200 L 3000 2800 2665°C 2670°C 2600 C 2600 2580 C 99.8 54 57 66 68 73 2400 2365 C 2337 C 37 48 2200 - 2170'C 2110°C (W) 2092°C 2020°C 51 2000 1970 C 17 (BB) 18 29.5 1800 10 20 30 40 50 60 70 80 90 100 Atomic percent tungsten Answer the following questions with reference to the Boron-Tungsten binary phase diagram shown above. 1. What is the melting point of pure boron? 2. What is the melting point of pure tungsten? 3. At what composition and temperature does the lowest-temperature eutectic in this system occur? 4. At what composition and temperature does the highest-temperature eutectic in this system occur? 5. List all of the known intermetallic compounds in this system. Temperature (°C) B,W. Mad BW,

Which bioceramic would you choose if you needed a biocompatible material that encouraged bone regeneration and tissue bonding? Select one: O a. Hydroxyapatite O b. Alumina with a grain size 4μm O c. O e. Yttria stabilized transformation toughened zirconia

Ceramics used as abrasives must be hard and tough and be able to withstand high temperatures that arise from frictional forces. What is the minimum required hardness (measure in Mohs scale) for a material to be used as abrasive? Your answer

Sublimation is preferred over recrystallization when you work with an amount of solid material to be purified that weighs: A) at least 1 kg B) about 100 mg C) about 1 mol D) about 1000 ml A OD

Write a 2-3 paragraph summary on an advanced material. Make sure to include the following: 1) Describe the chemistry (i.e., molecular formula or chemical composition How is it currently produced 2) 3) What are its advantages/disadvantages to other materials that are used for the same purpose 4) Provide a reference for your information

BALANCING EQUATION 3. _ MgF2 + _ Li2CO3 --> _ MgCO3 + _ LiF 4. _ Pb(OH)2 + _ HCl --> _ H2O + _ PbCl2 5. _ Na3PO4 + _ CaCl2 --> _ NaCl + _ Ca3(PO4)2 TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN.

chem 103 lab. manual 2021.pdf x O File C:/Users/user/Downloads/chem%20103%20lab.%20manual%202021.pdf D Page view A Read aloud T Add text V Draw 9 Highlight O Erase 35 of 97 Group Number Section Date Activity No. 5 LAYERING LIQUIDS Objectives: 1. To determine the density of liquid samples. 2. To form a layer of four given liquid (one on top of the other) according to the density, from bottom up. Apparatus : Platform balance, 1 - 25 mL test tube, 1 - 10 mL graduated cylinder, 2 - mL colored water, 2 – mL coconut oil, 4 pcs. Vials. 2 - mL colored alcohol, 2 - mL kerosene Materials : Theory: Density is best described as the compactness of a substance. The more compact is the substance the in a small space the heavier is the substance. For a less dense substance, the mass is spread out over a large volume of space. It is a measurement of how heavy of light is the substance Its mathematical expression is density is the ratio of an object's mass to its volume. The density of a material…

Give only six differences between compounding from manufacturing

A type of cast iron containing 3.1-4 wt% C and 1.7-3 wt% Si. *   a. Compact graphite   b. Malleable cast iron   c. Grey Cast iron   d. White cast iron

an empty evaporating dish weighs 25.1295 g. When unknown mixture is added, the dish and mixture weigh 29.9745 g. After removing the Fe with a magnet, the dish and remaining mixture weigh 28.2374 g. After extraction of the NaCl and drying the remaining solid, the dish and final mixture weigh 26. 8928 g. Calculate the mass and mass percent of Fe, NaCl, and SiO2 in the sample. Show all your work.

View History Bookmarks People Tab Window Help Amaya K - Outlo x B Chapter 5 - CHEM-1110-941- X Question 5 - Chapter 5- Conn X ducation.com/ext/map/index.html?_con3con&external_browser%3D0&launchUrl=https%253A%252F%252F Saved attempts left Check my work Enter your answer in the provided box. A sample of zinc metal is allowed to react completely with an excess of hydrochloric acid: Zn(s) +2 HCl(aq) → ZnCl2(aq) + H2(g) The hydrogen gas produced is collected over water at 25.0°C. The volume of the gas is 8.55 L, and the atmospheric pressure is 0.971 atm. Calculate the amount of zinc metal in grams consumed in the reaction. (Vapor pressure of water at 25°C = 23.8 mmHg.) g Zn 117 MAR 664 17 18 étv A

Why small grain size metals have the temperature environment greater mechanical strength than if they had larger grains?

The method described above is to be used for the analysis of ores that assay about 1.2% gold. What minimum sample mass should be taken if the relative error resulting from a 0.4-mg loss is not to exceed a. -0.1% b. -0.8%

Mass of evaporating dish grams 131.43g mass in kg lbs tons dg

Place each number in the corresponding space, ensuring that it is inside the rectangle marker. If any item is frozen on the screen, refresh it and proceed with your reply. 3 5 124 Place each name in the corresponding space, ensuring that it is inside the rectangle marker. If any item is frozen on the screen, refresh it and proceed with your reply. Reservoir Vacuum Filter conector Steel base Trap Safety clamp Filter adapter Glass crucible

PROCEDUREA. Clean and carefully weigh 2 strips of Cu, 2 strips of Fe, and a strip of Zn.B. Connect 1Cu strip and 1Fe strip together. Place them in a beaker containing salt water. C. Connect another Fe strip to one end of a Zn wire. Connect the other Cu strip to the other end of the same Cu wire.D. Place the connected strips in another beaker containing the same concentration of salt water.E. Set the mixtures aside for a couple of days.F. Wash the strips. Dry them. Weigh each strip.G. Explain results.

Product-related impurities can be identified using SV-AUC.True/False

2+ d. 4H3O+ (aq) + 2Cl(aq) + MnO₂ (s) ⇒ Mn²+ (aq) + 6H₂O(1) + Cl₂ (9) Oke O Ke = = O Ke = 2+ [Mn²+ ][C1₂] [H3O+] * [CI-1² [Mn²+][H₂O][C1₂] 2+ [H³O+][CI¯]²[MnO₂2] [Mn²+ ] [H₂O1] [C1₂] 2+ [H3O+] * [CI-1²[MnO₂]