A primitive cubic unit cell has: O 1 lattice point on every corner O 8 total lattice points a packing fraction of 74% a coordination number of 12

Q: Acidic Salt Solutions Consider an aqueous salt solution of ammonium chloride. B Select all chemical…

A: NH+4  +  Cl-   +H2​O→ NH4OH + H+ +  Cl-

Q: Which chemical species will have the highest boiling point? Propane or Ethylamine

A:

Q: 0.555M solution of NaBrO, what is the pH?

A: Given,Concentration of NaBrO solution = 0.555 MRequired,                   pH of the above…

Q: Give the organic product: Br 8 Select one: II @___ :ÖH IV ?

A: This is an example of elimination reaction this reaction undero via E2 mechanism to form an alkene

Q: Calculate the cell potential for the reaction as written at 25.00 °C, given that [Mg² ]=0.761 Mand…

A: Apply Nernst equation, Ecell = E0cell - 0.0591/n log (Mg+2)/(Ni+2)

Q: What is produced at each electrode in the electrolysis of NaBr(aq)? Please note incorrect answer:…

A: At anode, the oxidation half reaction occurs while at cathode, the reduction half reaction occurs.…

Q: O NaCl O HC1 O Cl₂

A: Highest melting point - NaCl  Lowest melting point - Cl2   The melting point of all three is…

Q: Lithium bromide has several applications, including air-conditioning systems, organic synthesis, and…

A: Given: Partial pressure of Li = 10-5 atm ∆G°=333,900-42.09 T

Q: The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or…

A:

Q: Consider the reaction Cr₂O72-(aq) + I¯(aq) → Cr³+ (aq) + 1₂ (s). (a) Balance this equation assuming…

A:

Q: What type of interaction did you show in your picture? Are there any other types of interactions…

A: We need to predict the interaction between KCl and MgO molecules. Since the elements are both…

Q: Select the expected major product(s) from the treatment of 1-pentyne with 1 equivalent of HBr in the…

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: You have a 12 oz. can (355 mL) of beer. You test the temperature and see that it reads 0°C. Now this…

A:

Q: A2. Directions: For each pair of atoms, calculate the absolute difference in electronegativity (AEN)…

A: we have to calculate the electronegativity difference and determine the type of bond

Q: Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 83 ∘C , where [Fe2+]= 2.90 M and =[Mg2+]=…

A: In the given question we have to calculate the reaction quotient and number of electrons lost or…

Q: Calculate the heat of reaction AH for the following reaction: 2 CH₂(g) + 30₂(g) 2 CO(g) + 4H₂O(g)…

A: Heat of the rxn = sum of bond energy (Product - Reactant) kj/mol

Q: how many grams of chromium must be consumed so that 6.4 grams of copper are produced in the reaction…

A:

Q: Classify the basicity of ammonia, NH3, based on its reactivity in aqueous solution. Choose 1 answer:…

A:

Q: ▼ Part A For the reaction 2Co³+ (aq) + 2Cl(aq)→2Co²+ (aq) + Cl₂ (g). E = 0.483 V what is the cell…

A:

Q: Which one of the following compounds does not follow the octet rule? A) NF3 B) CO2 C) CF4 D) Br2 E)…

A: Given some molecules a) NF3 b) CO2 c) CF4 d) Br2 e) NO2 We have to choose that molecule which does…

Q: which element is oxidized in the reaction below? Fe2+ + H+ + Cr2O72- --> Fe3+ + Cr3+ + H2O

A: Oxidation is loss of electrons or increase in the oxidation state.

Q: During the separation of species by chromatography, the stronger the interaction between analytes…

A: Chromatographic Technique has immobile stationary phase and a mobile phase which is moving. Elution…

Q: how about in synthesis of aspirin

A: Ethanol is used in synthesis of aspirin because :

Q: What is the minimum distribution coefficient that permits removal of 99% of a solute from 50.0 mL of…

A:

Q: Write the nuclear equation for the release of an alpha particle by 164  66Dy. (The alpha particle is…

A:

Q: эмо OME MaOME нзот о OME

A: Curley arrows are always drawn in such a way that the arrow head is pointing to the atom that is…

Q: consider these two entries from a ficitional table of standard reduction potentials. (see image)…

A: In an electrochemical cell, the electrode with a higher standard reduction potential acts as a…

Q: The cubic unit cell for ZnS is shown below. Every Zn atom is tetrahedrally coordinated with a…

A: ZnS is zinc blende structure and in this structure coordination number of zinc and sulphur is 4 . Zn…

Q: Calculate the solubility at 25 °C of Zn(OH)2 in pure water and in a 0.0180M ZnSO4 solution. You'll…

A: •Solubility in pure water:-

Q: Q5. Using the pK values of the conjugate acids of the leaving groups (pK perp (HBr) = - 9 . pK…

A: The reactivity of the substitution reaction depends on the nature of leaving group. A good leaving…

Q: If 33.0 g of NaOH is added to 0.550 L of 1.00 M Ni(NO₂), how many grams of Ni(OH)₂ will be formed in…

A: we have to calculate the mass of precipitate formed in the given reaction

Q: The pH of a fruit juice is 4.3. Find the hydronium ion​ concentration, H3O+​, of the juice. Use the…

A: Given, pH of the fruit juice = 4.3  Concentration of the hydronium ion = [H3O+] = ?

Q: 1) What volume would a 60 ml sample of neon gas at STP occupy if the pressure were tripled, while…

A: One mole of an ideal gas occupies 22.4 L or 22400 mL volume at STP (P = 1 atm, 101.325 kPa or 760…

Q: Calculate the heat of reaction AH for the following reaction: 2 CH₂(g) + 30₂(g) 2 CO(g) + 4H₂O(g)…

A: Given -> 2CH4 (g) + 3O2(g) ---> 2CO(g) + 4H2O(g) B.E(C-H) = 413 KJ/mole  B.E (O=O) = 498…

Q: The pOH of 0.0150 M solution of Sr(OH)₂ is

A:

Q: What intermolecular forces (IMFs) are present in CH3CH₂NH₂? O hydrogen-bonding (h-bonds) O…

A: we have to select the intermolecular forces present in ethylamine

Q: A chemistry graduate student is given 300.mL of a 0.50M pyridine C5H5N solution. Pyridine is a weak…

A:

Q: Two sets of ionizations are shown in the tables below. Complete the tables by ordering each set of…

A: Ionisation energy is the amount of energy required to remove the electron from an isolated gaseous…

Q: 3. N₂ Draw the molecular orbital diagrams for the following molecules determine the bond order and…

A:

Q: Calculate the energy required to heat 211.0 g of water from 47.4 °C to 66.5 °C. Assume the specific…

A:

Q: Consider the following phase change equilibrium: CHCl3 (s) CHCl3 (1) If AHO is 9.03 kJ/mol and ASº…

A:

Q: Calculate the energy required to heat 1.80 kg of mercury from -3.3 °C to 17.6 °C. Assume the…

A:

Q: What product forms when the following substance is treated with chloroform in the presence of KOH? O…

A:

Q: What is the electron pair geometry and bond angle for each atom bonded to more than one other atom?

A:

Q: What is the molar mass of a gas 0.735 L at 20.0 Celsius in 2683 atm weights 3757 g?

A: Given -> Volume (V) = 0.735 L Temperature (T) = 20.0°C = 20.0 + 273 = 293 K Pressure (P) = 2683…

Q: The global consumption of synthetic dyes is increasing due to increase in demand in various…

A: Among the large number of organic compounds , only few are considered as dyes . There are many…

Q: Examine the following half-reactions and select the weakest reducing agent among the substances.…

A: we have to select the weakest reducing agent

Q: QUESTION 3 In the reaction of 2-methyl-2-pentene with Hg(OAc)2, followed by NaBH4 The regiochemistry…

A: Markovnikov's rule  according to this rule negative part of the addendum goes to that atom of double…

Q: Reaction 2: H₂N HCI (3М) H₂N 1 4 ОН OH С+ NaOH (6M) H₂N НО OH 2 LO 5 8 ONa 0= OH CIH3N 3 6 9 CI

A:

Q: The isotope 65Ga undergoes radioactive decay, with decay constant λ = 0.0456/min. What is the…

A: Given the decay constant, λ = 0.0456 /min or 0.0456 min-1  We use the below formula to find…

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.