5. Europium forms a body-centered cubic unit cell and has a atomic radius equal to 240 pm in diameter. Calculate the density of Europium.

Q: answer #4

A: Equilibrium Constant for the reaction in gas phase is defined as the ratio of partial pressure terms…

Q: 5. A container is filled with deadly Chlorine gas to a volume of 47L at a pressure of 3.2atm at a…

A: Answer:- This question is answered by using the simple concept of gas laws which involves the…

Q: 9. A gas exerts a pressure of 0.975 atm when at 20.0°C and in a 1.75 L vessel. A. How many moles of…

A: Use the ideal gas equation to find the moles of gas present,PV = nRT n = PVRT  Now n = moles of gas…

Q: Please answer #2.

A: First the given grams of gases are converted into moles.

Q: Please answer #3.

A: Answer 3 :-  Pressure = 2.66 atm

Q: How many grams of solute are present in each of the following aqueous solutions? (a) 575 mL of a…

A:

Q: 5. Find the distance (in nm) between the body-centered atom and one corner atom in Na, given a30.424…

A: Given : Na atom in body centered atom and one corner atom .  To find : Distance (in nm)  Solution :…

Q: 5. Distilled beverages are often described by "proof" defined as twice the percentage V solute 1% of…

A:

Q: 8 Methane gas is compressed from 20. L to 2.5 L at a constant temperature. The final pressure is…

A:

Q: Consider the table. Metal Tm (K) Li 454 371 336 Rb 312 Cs 302 Na K A.Svap Using the data, calculate…

A: Answer:- This question is answered by using the simple concept of calculation of solubility using…

Q: For the system ethane (1)/ n-butane (2) as a gas, determine the fugacity and fugacity coefficients…

A: We need to consider that the system in an ideal gas solution.

Q: 11. Indicate their magnetic properties (that is, diamagnetic or paramagnetic) of the following Li2,…

A: The Megnetic properties of the given molecules is illustrate in the figure below: C22+ is…

Q: Directions: Given the equilibrium reaction (column 1) and the stress applied (column 2), choose the…

A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on…

Q: 2. A hypothetical alloy has a tace-centered cubic unit cell. Its density is 10,470 kg/m³, and its…

A: Given Data: Density of hypothetical alloy = 10,470 kg/m3 Atomic weight = 106.8 g/mole The atomic…

Q: CO@ + H2O@) → CO2@) + H2G) () After the carbon dioxide gas is removed by dissolving it in water, the…

A:

Q: moments (are polar)? (2)18+)28) -127. Write Lewis structures and predict the molecular structures of…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: The correct IUPAC name for the structure below is 2,4-dichlorobutane. H H H True False

A: 1) The IUPAC name of the above compound is :           1,3-dichlorobutane & not…

Q: answer #11

A: 1. Since enthalpy of the given reaction is negative, so the manufacture of ammonia is an exothermic…

Q: Question 9-, Which of the following is a secondary alcohol? OH H3C-C-CH3 ČH3 H3C– -CH3 OH H3C-C-CH3…

A: Types of alcohol depand -OH group attached which type of carbon atom.

Q: Show how the amphiprotic ion hydrogen carbonate, HCO,, can react as both an acid and a base.

A: We have to show the amphiprotic behavior of the hydrogen carbonate ion, HCO3-. We know that a…

Q: Trimethylamine, (CH3)3NH2, is a gas with a fishy, ammonialike odor. A 0.25 M aqueous solution of…

A: Since you have posted multiple questions, we are entitled to answer the first only. NOTE : The…

Q: Please answer #9

A: The reaction is – 2O2g + CH4g →2H2O g + CO2g

Q: 50. In order to prepare 100 ml HCI what 25 HCI and 20 volume of -HCI should be 30 mixed respectively…

A: Final volume = 100mL Final normality = N/ 25

Q: 2). Thionyl chloride, SOC12, is used as a powerful drying agent. The thionyl chloride reacts with…

A:

Q: Please answer #1 and #2

A: Hello. Since you have posted multiple questions and specified two question needs to be solved, we…

Q: Answer#4

A: Given:   Concentration of nitric acid = 80%(w/w) Density of solution = 1.51 g/ml

Q: 3. Draw the corresponding required structure in each item below: Он H3C a. b. CH3 Он Give the…

A: There are different methods to show the organic compounds structure. Let us discuss some of them.

Q: 7. Why does addition product B predominate at the higher temperature (100°C)?

A: This question is asking why product B predominates at a higher temperature in a chemical reaction.…

Q: 2. Given the structure of molecule A below, a. Draw as many possible resonance structures of the…

A: In the resonance structure drawing, movement of electron occurs only but not atom movement occurs.…

Q: answer #2

A: The thermodynamic relation between ln Keq, ∆H˚ and ∆S˚ is as follows: On comparing this equation…

Q: 4. What is the final temperature in °F of an Indy Race Car tire that was inflated to 33 PSI and…

A: In accordance with Gay Lussac's law, the pressure of the gas varies directly with the temperature of…

Q: answer #9

A:

Q: 1. Cobalt crystallizes in a HCP unit cell. Its atomic radius is 0.1253 nm. Its density is 8,900…

A: HCP unit cell has 6 atoms per unit cell.  And density is defined as- Density = massVolume occupied

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.