28. The unit cell of an ionic compound is shown below. Determine the formula of the...
Term 161 (Final 1. In an ionic compound of fomula Mathe metal (M) occupies a face-centered cubic lattice and the anions occupy four positions inside the unit cell. Detemine the formula of the compound. A) MX B) MX C) M2X D) MX E) MsX
B) What is the empirical formula of this ionic compound? 2. Consider the ionic compound whose unit cell is shown below. The white spheres represent sulfur atoms and the black spheres represent zinc atoms. A) In which type of unit cell are the sulfur atoms found in this ionic compound? (1 point)
2. Consider the ionic compound whose unit cell is shown below. The white spheres represent sulfur atoms and the black spheres represent zine atoms. LLORA AASTAT A) In which type of unit cell are the sulfur atoms found in this ionic compound? (I point) B) What is the empirical formula of this ionic compound? (1 point) 1. For which pair/s of substances would A Holn most likely be strongly endothermic? (circle all that apply) (2 points) CaBr2 CCK NH НСІ...
Complete the table below for calculating the formula mass of the ionic compound chromium(II) bromide . Atomic Mass Number of ions Mass of Ions Ion Formula Cr2+ Br L Cation Anion amu amu X amu x = = amu amu formula mass chromium(II) bromide = U
1. Below is the unit cell for perovskite which contains two metal cations, A and B, and oxide ions. The oxide ions reside on the faces of the unit cell. Please answer each of the following. (12 points) How many A cations are within the unit cell? How many B cations are within one unit cell? How many oxide ions are within one unit cell? What is the empirical formula of the A ions, B ions and oxide ions within...
21. (5pts) The unit cell for a compound is shown below: The empirical formula for this compound is: (a) AB (b) A B (C) AB (d) AB
Complete the table below for calculating the molar mass of the ionic compound iron(III) fluoride. Formula Molar mass of ion Number of ions Mass of ion in one mole of iron(III) fluoride Cation Fe3+ g/mol x mol Anion F g /mol mol - Molar mass iron(III) fluoride - g/mol
21. (5pts) The unit cell for a compound is shown below: OB The empirical formula for this compound is: (a) AB (b) AB (C) AB (d) AB
3. A compound comprising of Pt and N is calculated to adopt the cubic structure shown below (a derivative of the zinc blende structure). The Pt atoms form an fcc unit cell and N atoms occupy all tetrahedral sites. Please answer the following questions regarding this compound and its structure. (a) Identify the N atoms as either large spheres or small spheres (b) Indicate the coordination of the Natoms (show below (c) What is the formula of the compound how...
question 1 2 3 4 5 6 7 8 t). Và - H đi, dt 3H8 2009/01/06 Name: Student ID: (1) Write down the formula for the relationship between an atom's radius "r" und unit cell length "a" in (a) simple cubic (b) bodysentered cubic, and (c) face-centered cubie (9%) 11,67 ) (2) LiBr has a density of 3.464 g/em, rock salt structure, shown in Figure 1. The atomic weight of Li 6,941 and Br 79.904. Calculate (a) the molar...