0.190 An unknown substance has a density of 4.56 g/cm3 and atomic radius of nm. It crystallizes to form a body-centered cubic unit cell. Determine its molar mass.

Q: C Calculate the moles of sulfuric acid needed to neutralize the base. (To avoid introducing rounding…

A: Answer: Moles of a compound is always equal to its molar concentration and volume of solution.

Q: 45. When 1.65 g of ethanal (CH3CHO(1)) is burned in a calorimeter to produce H₂O(l) and CO₂(g), 44.7…

A: Given data :  Mass of ethanal = 1.65 g  Heat released during the reaction = 44.7 KJ Firstly we will…

Q: Consider the following equilibrium system: PCI5(9) PC13(g) + Cl₂(g) A 10.00 L evacuated flask is…

A: Here first we have to determine Kp then Kc using the relation between them.

Q: The equilibrium constant, Kp, for the following reaction is 1.80x10-2 at 698 K. 2HI(g) H₂(g) + I₂(9)…

A: Here we have we to determine Kp of the following given equilibrium reaction from given data. By…

Q: 4) Use a Newman projection to show the most stable conformation of 4-isopropyl-2,3-dimethylheptane…

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Q: 3.28 For each pair of structures below, identify the stronger base, and explain your choice: :ÖH…

A: A compound which dose not easily release hydrogen ion in solution is called strong base.

Q: Essential oils are concentrated liquid containing metabolites extracted from plant sources and are…

A: The boiling point of the compounds depends on the intermolecular forces. The boiling point increases…

Q: An “unnatural” sugar found as a component of hemicellulose was found to contain 40.00% C and 6.71% H…

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Q: hi sorry i cannot tell the final product answer. i cant differeientiate between the zeros and eights

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Q: 5. What is the percentage composition of the elements present in sodium carbonate?

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

Q: Propose a molecular formula for a compound that exhibits the following peaks in its mass spectrum.…

A: Given :

Q: What is the significant figure for this problem?

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Q: Classify the following reaction: 2Na(s) + Cl₂(g) → 2NaCl(aq) Osynthesis Odouble replacement O single…

A: -> Single replacement reaction is a chemical reaction in which one element is replaced by another…

Q: A new analytic instrument is capable of detecting picogram quantities of a chemi- cal substance. How…

A: We have given a new analytic instrument is capable of detecting picogram quantities of a chemical…

Q: The equilibrium constant, Kp, for the following reaction is 1.80×10-² at 698 K. 2HI(g) H₂(g) + I₂(g)…

A: The equillibrium constant decreases with increase in temperature . Equillibrium constant is related…

Q: CLASSIFY IF ACID, BASIC, OR NEUTRAL NaClO4 SrI2 MgCO3 NH4CN Fe(NO2)2 CaCl2

A: Acid is substance which release hydrogen ions when dissolved in water and Base is substance  which…

Q: Hydration of cement is due to chemical action of water with Tetra calcium Aluminoferrite Tricalcium…

A: Cement contains Tricalcium silicate, Dicalcium silicate,Tricalcium aluminate, Tetracalcium…

Q: The activation energy, Ea, for a particular reaction is 13.6 kJ/mol. If the rate constant at 475 K…

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Q: You prepared a 0.250 M NH, solution by diluting 8.46 (±0.04) mL of 28.0 (10.5) wt% NH, [density =…

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Q: Perform the following calculations for your procedure: 1. To prepare a 100.0-mL 4.00 mM Fe³+…

A: We need to prepare 100.0 mL of 4 mM  Fe3+ solution from the FeCl3 solid.

Q: The given data is obtained at 25°C. 1. Solve for rate law and rate constant at 20°C 2. If rate…

A: First of all, we calculate order of reaction with respesct to reactant ClO2 and OH-. With the help…

Q: If the Mn of a batch of LDPE is 3.2x109 g/mol, what is the corresponding full contour length in…

A: Given: The molar mass of LDPE is 3.2 x 109 g/mol To calculate: Full contour length in Angstroms (Ao)…

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm3. How many…

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Q: 53. To qualify to run in the 2015 Boston Marathon, a distance of 26.2 miles, an 18-year-old woman…

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Q: Consider a piston (or box) pressurized with air. Suppose you compress the piston so that the final…

A: The volume is compressed to half of the initial volume at a constant temperature.  Hence this is a…

Q: .771g of acetominophen reacts with 1.0 eqivalent of 1.5M KOH and 1.2 equivalents of pure liquid…

A: Mass of acetominophen = 0.771g 1.0 eqivalent of 1.5M KOH,  1.2 equivalents of pure liquid n-butyl…

Q: Calculate the theoretical yield (in grams) of magnesium oxide in your experiment in both trial 1 and…

A: Given: Mass of Mg = 0.1223g Mass of O2 = 0.074g Molar mass of Mg=24.305 g/molMolar mass of…

Q: What is the pH of 0.400 M ammonia soln? (Kb = 1.8 x 10-5) (Round-off your answer to two decimal…

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Q: How biochemistry has impacted your personal life.

A: We have asked how biochemistry has impacted ourpersonal life.Biochemistry is a mixture of concepts…

Q: At some temperature, a steel, 2.6-L box initially contains 12.9 mol SO3. 2 SO3(g) 2 SO2(g) + O₂(g)…

A: Answer: To find out the value of Kc we have to find out the concentration of SO3 that has…

Q: 1.. Explain how proximity to a like charge affects the pKa of a carboxylic acid. Explain how…

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Q: The kinetics of a gas phase reaction of the form A → Products results in a rate constant of 1.308…

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Q: 4 HNO3(aq) + 5 N₂H₂(1) → 7 N₂(g) + 12 H₂O(g) AH = =- 74. Which statement is correct for the reaction…

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Q: An aqueous solution of isopropyl alcohol, C3H8O, rubbing alcohol, has a mole fraction of alcohol…

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Q: At 1.00 atm and 0 °C, a 5.04 L. mixture of methane (CH₂) and propane (C,H,) was burned, producing…

A: Given :-  Volume of CH4 and C3H8 gas mixture = 5.04 L  Mass of CO2 = 16.5 g  Pressure = 1 atm…

Q: D) Mark the carbon(s) having higher electron density as a result of the combined effect of the two…

A: -> Aromatic compound can give electrophilic substitution reaction in presence of electrophile…

Q: Determination of the Empirical Formula of Magnesium Oxide Data Sheet ata Table 1: Empirical Formula…

A: #1 is correct.  #2 , the mass of product can be calculated using the formula :  Mass of product = (…

Q: Suggest two ways to reduce the errors of determining the molecular weight of a polymer(polystyrene…

A: Polymer: A polymer would be a substance and material made up of macromolecules, which are very big…

Q: Ep (kJ) -450- -500- -550 -600- -650. Reactants +90 kJ c. - 80 kJ d. - 170 kJ Reaction coordinate 60.…

A: The energy possessed by a molecule dueto its configuration is known as potential energy.

Q: At 286 K and a total equilibrium pressure of 0.972 atm, the fractional dissociation of NO is 0.276…

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

Q: + Alcl3 대 3대2CH221 7 ~ CH3CH₂CH2CH₂ H shift 1° 3 +

A: what is degree 1 and degree 2？what does it means in organic chem II？

Q: Calculation of the entropy of mixing for each mixture: You measured the exact temperature at which…

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Q: The equilibrium constant, Kp, for the following reaction is 1.80×10-² at 698 K. 2HI(g) ? H₂(g) +…

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Q: Please describe how you would proceed to isolate and quantify Vitamin C in oranges, assuming a…

A: Solutions- Isolate and quantify Vitamin C in oranges.

Q: -15 Consider the reaction A + B → products From the following data obtained at a certain tem-…

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Q: ch of the indicated lone pairs are delocalized? Briefly explain your answer. Z-I H I

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Q: Label each as chiral or achiral: Chiral Chiral Br Chiral Achiral ●●●●●●●●●●

A: Since, Chiral molecule are those whose all four group or atoms  are different and that atom which is…

Q: Can you do it and explain it? Show the mechanism. I only need the last two questions

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Q: The chemical reaction that causes iron to corrode in air is given by 4Fe+302 2Fe203 with AHrxn =…

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Q: Write the mechanism to predict the products of each of these reactions. A)…

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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.