A furnace is fired with petroleum oil containing 50% C, 15% H, 7% S, and the rest is O. Determine the theoretical moles of air required for the combustion of 1kg of oil.

Q: Match the correct answer with each statement. Coordination number of atoms in a BCC unit A. number…

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: Magnesium ions are removed in water treatment by the addition of slaked lime, Ca1OH22. Write a…

A: Presence of magnesium ions in water is responsible for the hardness of water. So, during water…

Q: How many grams of CeHe liquid must decompose according to the following chemical equation to…

A: The given thermochemical equation is: C6H6(l)  -----> 3C2H2(g) ; ∆H = 630 kJ Given the amount of…

Q: Explain how zeolites that contain sodium ions can be used to soften water.

A: Zeolites are often used to soften water

Q: 2- Below information is given for nickel. Atomic weight of Ni: 58.7 g/mol Melting temperature: 1455…

A: A phase diagram shows the range of existence of phases in materials with more than one component.…

Q: ?How many of the substances below is/are, not an example of a molecular solid

A: The molecular solids are the solids in which the van der Waals forces are responsible to held…

Q: A- Iron was inherited at 912 C by the effect of heating from a BCC crystalline structure to a…

A: BCC ----------> FCC Radius when in BCC = 0.1258 nm Radius when in FCC = 0.1289 nm

Q: In this figure, a polar stratospheric cloud (PSC) ice crystal is displayed. Chemical reactions that…

A: To write A and B reactions:

Q: Calculate the mass of KI needed to saturate 111.11g H,0 at 20° C.

A:

Q: Calculate the change in the enthalpy when 52.0 g of solid chrominium at 25*C and 1 atm pressure is…

A: Molar mass of chromium is 52g/mol, which means 1mol of Cr = 52g of Cr.  According to stoichiometric…

Q: Determine the heat of dissolution, in kJ/mol, of 0.250 mol C2 having a specific heat of 0.84 J/g °C.…

A: Heat absorbed = =mass ×temperature change × Specific heat capacity

Q: We have spent some time discussing reactions that occur in aqueous media and devoted some attention…

A: The power required to drive the hydrological cycle is primarily driven by the energy from the sun.…

Q: How is plaster of Paris chemically different from gypsum? How may these be inter converted? Write…

A: Gypsum is a sulfate mineral which contains calcium sulfate dihydrate. The chemical formula is…

Q: 1) Consider the following reaction: Mg(s) + 2HCl(aq) MgCl₂(aq) + H₂(g) The total pressure of gas…

A:

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 67.1 g/mol and…

A:

Q: Could sodium carbonate (Na2CO3) be used for the same common uses as sodium bicarbonate (NaHCO3)? Why…

A: The question is based on the concept of chemistry in day to day life. we have to explain the usage…

Q: What type of linkage is in the diagram below?   Group of answer choices β1⟶4β1⟶4 α1⟶4α1⟶4…

A:

Q: Does sodium hydroxide have higher conductivity or ammonia?

A:

Q: What is the difference between Asthenosphere and Lithosphere? O Lithosphere is rigid and…

A: Earth chemistry

Q: What is the contribution of the labelled S2- ion on the face of the lattice structure to the formula…

A: We have to identify the contribution of marked S2- in the crystal lattice.

Q: Which one of the following statements is correct? A. All metals are shiny and can conduct…

A:

Q: A compound of Sn, Cd and P are mixed together to synthesize a semiconductor. The phosphorous atoms…

A: we have to  determine the formula of the compound

Q: A diamond is said to last forever. Many believe this eternal existence is related to its hardness…

A: Diamond is an allotrope of carbon. It is a solid form of carbon with its atoms ordered in a crystal…

Q: None

A: A phase diagram is a type of chart used in chemical engineering to illustrate the conditions under…

Q: Which of the following substances will conduct electricity in both of its molten and solid states?…

A: As we know,  electricity is conducts due to free electrons and free ions   Sn is the element which…

Q: 19. One of the polymorphs of ZrO2 is shown below. Identify the lattice and basis for this structure?…

A: Lattice + Basis gives the unit cellLattice is how to repeat means the framework of the unit cell and…

Q: The following information is given for antimony at latm: boiling point = 1440 °C AHvap(1440 °C) =…

A: The ∆H of freezing = 4.81376 KJ.

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 68,73 g/mol and…

A: For Simple cubic crystals, there is a relation between edge length and radius a=2r from here we have…

Q: SH vaporization = 2300 J/g SH fusion of water = 300 J/g SH ice = 2.0 J/g K SH water = 4.0 J/g K SH…

A: Given data,Specific heat of vaporization=2300J/gSpecific heat of fusion=300J/gSpecific heat capacity…

Q: Describe how the anatomy of an atom. What is the atomic number and atomic mass?

A:

Q: What are the signs of AH and AS, respectively, when iodine crystals undergo sublimation? O >0, >0 O…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: Name the two most important allotropes of sulphur. Which one of the two is stable at room…

A: The two most important allotropes of sulfur are given below, That is, Rhombic form and Monoclinic…

Q: Uses of Amorphous carbon

A: Amorphous carbon is one of the non-crystalline allotrope of carbon as evident from its name. It is…

Q: Which of the following is a covalent network solid? Ophosphorus brass barium hydroxide carbon…

A: Answer:- This question is answered by using the simple concept of covalent network solid which are…

Q: What is the actual meaning of Biocompatible and biodegrable for the scaffolds for biomedical…

A: A question based on introduction to polymer that is to be accomplished.

Q: If 20.15% of the atoms in a sample of tin are replaced by copper atoms without any change to the…

A:

Q: for what purpose polyphosphates are used ?

A: The esters or salts of polymeric oxyanions in which phosphate groups are attached tetrahedrally and…

Q: Material from chapter 12, 15 2 NO2 (g) N2O4 (g) a. Is this endothermic or exothermic? AH = -57.23…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Minerals that generally form from the evaporation of a water-based solution belong to which chemical…

A: Rocks which formed by evaporation of water-based solution are known as evaporites or evaporites…

Q: Which of the following has the highest heat capacity and conductivity? Group of answer choices a.…

A: Solution :      Heat capacity is used to measure the amount of heat a material can hold. This is a…

Q: Based on the thermodynamic properties provided for water, determine the amount of energy needed for…

A:

Q: 23 Which of the following compounds has the highest melting point?   A. C6H6 B. H2O C. ZnO D.…

A:

Q: Define allotropy. Describe different allotropes of Carbon including  a) diamond, b) graphite and…

A: Allotropes are forms of the same element which have either exist in the same or different physical…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.