Toluene is denser than water TRUE O FALSE O O

Q: Unit cell /(pm) r (pm) V(cm³) M (g/mol) d(g/cm3) (Blank 2) x simple cubic (Blank 1) 167 (Blank 3)…

A: The given cells are : Simple cubic cell Body centered cubic cell Face centered cubic cell

Q: What is the melting point of the substance modeled by this heating curve? F. 150 D E 135 120 105 90…

A:

Q: A liquid rises to a height of 1.50 cm in a capillary tube. What is the radius of the tube if the…

A: The liquid rises and falls in a capillary tube due to the forces of adhesion and cohesion. The…

Q: What amount of heat, in kJ, would be involved in condensing 11.2 g of CH₃OH? (∆Hvap = 38.0 kJ/mol)

A: Weight=11.2g ∆Hvap=38.0kJ/mol Molar mass of CH3OH=32.04gm/mole

Q: The ingredients in the lamina may be .......... or ..... Materials. Intraply is ..... • One of…

A: 1) reinforcing fibres or matrix       2)hybrid composite

Q: Which one below is true for polymers? Density of crystalline polymer is less than that of amorphous…

A: Given statement is :  Which one below is true for polymers ?  a). Density of crystalline polymer is…

Q: --1 atm Vapor Temperature (C)→ 6 Unary phase diagram for SiO2 Pressure (atm)- a-quartz Bquartz…

A: The point where more than 2-phases coexist  is called a triple point.

Q: half of the atomic number of Frandnium is 0, 132 nm. and the density is 61g/Cm² does t have Face…

A: Given Atomic radius of Vanadium = 0.132 nm = 0.132 * 107 cm Density of Vanadium = 6.19 g/cm3 Atomic…

Q: The glancing angle (θ) of a Bragg reflection (n = 1) from a set of crystal planes separated by 99.3…

A: Given data θ= 10.420 d= 99.3 pm 1pm = 10-12 m  n= 1 Use bragg equation  nλ= 2dsinθ

Q: _14. Which of the following can be classified as a copolymer? CN II IV d. IV e. None of these is a…

A: A copolymer is a polymer derived from more than one species of monomer.

Q: The density of an unknown polymer is 1.875 g/cm³ with a % crystallinity of 50%. If the density when…

A: Density of a substance is representative of including both amorphous and crystalline structure.

Q: 44. Identify the region/s where solid NOOK can be observed. O V W.

A: In the heating curve of NOOK : Region V: NOOK being heated as solid  Region W: Melting of NOOK…

Q: (a) What molecular features make a polymer flexible? (b) Ifyou cross-link a polymer, is it more…

A: a. The intermolecular attractions between the polymeric chains can be hydrogen bonding, dispersion…

Q: Bunsen burner used to: O Heat solution O Heat liquid material O Heat solid material O All above.

A: Bunsen burner is an instrument that can be used for a single and continuous flame. In this burner, a…

Q: 30) That "DIAMOND" on her finger is: i) an allotrope of carbon ii) ii) iv) a three-dimensional…

A: Dear student this question is related to general chemistry.

Q: Melting Pt. (°C) Boiling Pt. (°C) Substance Appearance Conducts as Conducts as solid liquid…

A:

Q: نقطة واحدة نقطة واحدة can be heating and ......33 .reshaped is A. Thermoset. O B. Thermoplastic. O…

A: Thermoplastic polymer are those polymer which can be reshaped by changing the temperature is called…

Q: :Aromatic compounds are -32 A - Saturated cycloparaffin hydrocarbons. O B - Unsaturated…

A:

Q: 4.32 Molybdenum forms a substitutional solid solu- tion with tungsten. Compute the weight percent of…

A:

Q: 1og of ice at D2 is mixed With H20 at 58°2? Find t, :."

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700°C (1290°F) to 400°C (750°F). (i) At what…

A: The Mg-Pb phase diagram is shown as follows:

Q: Q4: A: Calculate the average of (number, weight, and viscosity) of molecular weight, Dp for…

A: The mid-point of the histogram in the given chart is used for the molecular weight.

Q: 1) ----- gives properties of erystalline solids so they dominate the material properties. 2) Crystal…

A: As per the guideline, since you have asked multiple question, we have solved the first question for…

Q: The heat of fusion of some component A at it normal melting point 242 K is 3.62 cal/g. The densities…

A: The relation between heat of fusion and pressure is shown below: P2 -P1 =∆Hfusion∆VfusionlnT2T1…

Q: What amount of heat, in kJ, would be involved in condensing 23.1 g of CH₃OH? (∆Hvap = 38.0 kJ/mol)

A: Given, The amount of heat, in kJ, would be involved in condensing 23.1 g of CH₃OH? (∆Hvap = 38.0…

Q: Which of the following polymers has a syndiotactic structure? A CH B CH D

A:

Q: Has a compound orthorhombic unit cell (a=588, B=820, and C=796 pm). Find the density more precisely…

A: For orthorhombic unit cell the number z = 4 Density = z*M/a*b*c

Q: In which type of point defect, positive and negative ions are missing from a crystal? Vacancy defect…

A:

Q: The repeat unit in polystyrene coffee cup has C6H5CHCH2. If the molar mass of the polymer is…

A: Degree of polymerization = Molecular weight of polymerMolecular weight of monomer   Molar mass of…

Q: The hybridization of carbon - 30 .atom in alkyne is A - 3ơ + 1 π. B - 40 C-10+2 1. .Cross-ling is -…

A: 1. Hybridization of carbon atom in Alkyne is 2 Sigma and 2 pie and is SP hybridized.

Q: Polymer PXX has a glass transition temperature of 49°C. What is the typical appearance and…

A: The temperature at which polymer undergo transition from glassy to

Q: What amount of heat, in kJ, would be involved in condensing 12.0 g of CH₃OH? (∆Hvap = 38.0 kJ/mol)

A: What amount of heat, in kJ, would be involved in condensing 12.0 g of CH₃OH?

Q: 15. Network polymer structure is. O A. Branching. O B. Liner. OC. Cross-link. 16. Strong bonding in…

A: Answers for questions number 15-17 with explanation given below.

Q: Determine whether the first part of statement will INCREASE, DECREASE or HAVE NO EFFECT in the…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: What amount of heat, in KJ, would be involved in condensing 24.0 g of CH3OH (Hvap=38.0 kJ/mol)

A: given mass of CH3OH = 24 g ΔHvap = 38 kJ/mol

Q: What amount of heat, in kJ, would be involved in condensing 17.6 g of CH₃OH? (∆Hvap = 38.0 kJ/mol)

A:

Q: Calculate the thermal energy transfer required to vaporize 0.500 mol Br2 at its normal boiling…

A:

Q: General Face Centered Cubic e.g. NaCl, KCI, MgO, PbS etc UNIT CELL Na Unit cell 5.63 A N 0U0 >…

A: edge or side = 5.63 x 10-8 volume = (side/or edge )3 volume =(5.63 x 10-8)3 =1.78x 10-22

Q: Q4: A: Calculate the average of (number, weight, and viscosity) of molecular weight, Dp for…

A: To calculate number , weight and viscosity average molar mass we need to know the relation between…

Q: Rank the compounds below from lowest to highest viscosity based on their structures. (Hint: hydrogen…

A: Given compounds: 1-propanol, CH3CH2CH2OH propane, CH3CH2CH3 propanal, CH3CH2CH=O 1-propanamine,…

Q: There magnetic quantum number determines the .movement of the electrons True False is branched…

A: 1. The magnetic quantum number of an electron is one of the four quantum numbers that state the…

Q: Consider the thermodynamic data below:   Compound ΔH∘f(kJ/mol) C3H8(g) −103.85 O2(g) 0 CO2(g)…

A: Calculate the minimum number of grams of propane, C3H8(g), that must be combusted under standard…

Q: Which of the following is CORRECTLY matched? Select one: O a. CO₂: molecular solid b. Platinum:…

A:

Q: The bonds that hold semiconductor atoms together in a crystal are called trivalent bonds. Select…

A:

Q: ng your own words explain why ceramics are stronger and stiffer than polymers

A: Polymers can be defined as a large macromolecule made up from large number of monomers

Q: what is the final temp of an insulating polymer if a 69.30 g sample with specific heat of 8.315 J/g…

A: Given : Amount of heat absorbed = 4.0 KJ = 4000 J                       (Since 1 KJ = 1000 J)…

Q: Tony Stark was investigating the properties of the Vibranium in Captain America's Shield. He found…

A: The density of a solid is given by the formula  d = Z×Ma3×NA d = density of metal  M = molar mass of…