Consider a gas of hydrogen atom filling a cubical box of side length 1 m. Assume that all hydrogen atoms are in their ninth excited state and they fill up the space like footballs filling up a room. Estimate the number of hydrogen atoms in the room.

Q: dissociate in water. Weak acids and bases, however, are choose your answer. electrolytes and only…

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Q: This reaction was performed in the lab and found to release 471 kJ of heat. How many moles of NaCl…

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Q: Which of the following are enantiomers of each other? H Н OB, D OA, C O A, B O B. C IA A Н Ф Br Н…

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Q: equilibrium the partial pressure of N:0, wa found to be 015 atmospheres. If Kp for the reaction…

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Q: Q9 The chemical reaction below has a Ke value of about 49.7. How many moles of H2(g) are there at…

A: Formulae used :  Molarity = Moles × volume(in L) pH = - log [H+]  pH + pOH = 14  pOH = - log [OH-]…

Q: a) What is the wavelength in nanometres of light emitted by the helium ion (He2+) when it captures…

A: The answer is given as follows

Q: 6. For each of the following neutralization reactions, predict the products AND balance the…

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Q: This format is confusing.  Can you please rewrite this?

A: Using dilution formula and unit conversion, volume of concentrated HNO3 required and concentration…

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Q: 13 of 23 Match the items in the left column to the appropriate blanks in the sentences on the right.…

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Q: Calculate the AH of the following processes at 25°C and determine whether each process is exothermic…

A: If change in enthalpy of the reaction ∆Hrxn is a negative value then, the reaction is exothermic in…

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Q: 4. What is the concentration of an ammonia (NH3) aqueous solution if the pH value of the solution is…

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Q: Fill in the left side of this equilibrium constant equation for the reaction of carbonic acid…

A: in this question given ka ka= Acid dissociation constant, acid dissociation constant is used to…

Q: 11. Rank the following in order of decreasing ionic character of their bonds: PCI3, PBr3, PF3 a)…

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Q: 2. With supplied data, perform the following analyses: I. Show relevant calculations II. Draw the…

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Q: 2 NaCI 3. Questions 25-30 concem the following graphs: mechanism for each by the following equations…

A: Graphical representation of one parameter relative to the other is more helpful to analyse and infer…

Q: Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O2(g) → CO2(g)…

A: Identify the reaction is exothermic or endothermic ----

Q: 231.25 g/mol) is an Isocarboxazid (MW organic monoamine oxidase inhibitor used to treat depression…

A: The pressure created by the flow of solvent molecules from a less concentrated solution to a more…

Q: Please do all 3d drawing for 1. PCl5 2. SeF4 3. Tel6 4. XeF4

A: All the possible structures have been shown below.

Q: 2. Answer All Parts (a) For the following compounds, indicate whether the atoms, groups or faces…

A: In stereochemistry, topicity refers to the relationship between the substituents that are attached…

Q: Solve the attached file?

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Q: When a 0.061M aqueous solution of a certain acid is prepared, the acid is 2.1% dissociated.…

A: For a weak acid - WA   ⇔     W+     +      A- The reactants and products are in equilibrium. Since…

Q: Arrange the following alkyl halides based on their reactivity (from fastest to slowest) towards…

A: According to the question, The compound I → 1-bromobutane The compound II→ 2-bromobutane Compound…

Q: ) Predict the number of lines expected in EPR spectrum of bis (salicylaldiaminato) copper(II).…

A: The given problem is based on ESR  the number of lines = ( 2nI + 1)

Q: Part D What temperature is required to produce a carbon dioxide partial pressure of 1.0 bar? Express…

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Q: ch energy was released by

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Q: What is the practical application of the reaction in #12? How do we use the products of this type of…

A: According to the question, it is an Esterification reaction & the product of this reaction is…

Q: Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of a. 1.50 mg…

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Q: 7. In the following chemical reaction the rate of consumption of liquid propane is observed to be…

A: By definition, Rate =1m(Rate of consumption)reactants =  1n(Rate of production)products where m and…

Q: Q1/ A body cools from 80°C to 50°C in 30 minutes. The temperature of the surroundings is 25°C. Find…

A: Concept - this question will be solved by the help of Newton's law of cooling. It states "Newton's…

Q: 3.1 g of NaOH(s} is dissolved in 57.9 g of water with an initiat temperature of 22.5°C and the…

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Q: ||| 1. Br₂ (1er). 2. O₂, Pd/c Me öH

A: Alkynes undergo electrophilic addition reaction

Q: 12. As the value of each of the following atomic properties increases, which property increases the…

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Q: A Chemistry student is asked to predict the pH of a potassium hydroxide solution when 1.82 g of…

A: KOH is a strong electrolyte. So it will completely dissociate when it will be dissolved in water.…

Q: 5. A 6.00-g candle is consumed in heating 45.0 g of water from 19.0°C to 32.0°C. If you ignore loss…

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Q: species Na (s) Ag(s) A1 (s) Mg(s) reducing power choose one v choose one v choose one v choose one v…

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Q: 13. The electron configuration of Argon (Ar) differ from those of Chlorine (CI) and Potassium (K) by…

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Q: TITRATION DATA In the next part of the experiment, you used the standard solution of sodium oxalate…

A: Calculation formula, 5M1V1= 2M2V2 M1=molarity of KMnO4 solution M2= molarity of oxalic Acid…

Q: 3D drawing for  1. NH4+ 2. PCl5 3. SeF4 4. Tel6 5. XeF4

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