274.51g of Ca(CN)2 have what volume as a gas @STP? round answer to 2 decimal places.

Q: Match each description to a type of radiation Drag each item to the appropriate bin. View Available…

A: To solve this problem we have to identify the given properties to the type of radiation .

Q: In order for a molecule to exhibit dipole-dipole forces, molecule. permanent dipole oxygen double…

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Q: This answer is showing as incorrect. Please help. Ty.

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Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A: Balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Consider the reaction: 2SO2(g) + O2(g) → 2SO3(g) ed Text If 279.5 mL of SO₂ reacts with 167.3 mL of…

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Q: Given (A) 231 nm, (B) 245 nm, (C) 282 nm and (D) 275 nm, label each structure with the correct…

A: As per student's request I'm solving question number 5.

Q: synthesis

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Q: 12A -A- Chemicals Unknown solid Benzamide Solid Naphthalene Unknown Benzamide. Unknown…

A: The melting point of a substance is defined as the temperature at which the substance changes its…

Q: You need to make 100mL of a 0.2 molar sucrose (C12H22O11) solution. How much sugar do you need to…

A: A molar solution of a substance is a solution that contains a defined number of moles of solute per…

Q: A flashbulb of volume 2.40 mL contains O2(g) at a pressure of 2.30 atm and a temperature of 27.0 °C.…

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Q: 11. Write the names and formulas for the following ionic compounds: 3. 4. 5. 2. 6. 7. 9. 1. 13. 10.…

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Q: An incomplete Lewis structure is shown below. The structure only shows the atoms and how they are…

A: •Given:-   •Lewis structure:- Lewis structure represents that structure of molecule with bonds,…

Q: A 92.9-g piece of a silver/gray metal is heated to 178.0 °C, and then quickly transferred into 75.0…

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Q: In cyclooctatetrane, how many electrons are in nonbonding molecular orbitals?

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Q: starting from acetylene as the only carbon-containing chemical, along with any other chemicals show…

A: Acetylene has two hydrogens which are acidic in nature because it is attached to the sp carbon. Due…

Q: Which compound H CI C=C X has the higher boiling point? Explain briefly. H H C=C Y CI X, because it…

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Q: A fictitious element X has an average atomic mass of 122.397 u. Element X has two naturally occuring…

A: According to the question, The average atomic mass of the element X = 122.397 uThe mass of an…

Q: A  0.487 g   sample of a metal, M, reacts completely with sulfuric acid according to the reaction…

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Q: What mass of HCl is contained in 27.1 mL of an aqueous HCl solution that has a density of 1.19 g/mL…

A: Given, density of HCl solution = 1.19 g/mL volume of HCl solution = 27.1 mL we know, density = mass…

Q: If you measured the experimental freezing point of 25.0 g cyclohexane with 0.014 moles of toluene…

A: If you measured the experimental freezing point of 25.0 g cyclohexane with 0.014 moles of toluene…

Q: Draw four resonance structures of the following ion. H₂C CH₂ CH₂ CH₂

A: Resonance structure:- Resonance structure represents same molecule. They are formed due to…

Q: 24. Calculate the enthalpy of formation of KCl(s) using the Born-Haber cycle approach. You are…

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Q: If a gaseous mixture is made of 2.58 g of He and 4.59 g of Ne and is in an evacuated 2.85 L…

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Q: An ideal gas receives 350. J of heat and contracts by 3.00 L against an external pressure of 175…

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Q: OH HIO4 OH a. acetic acid, CH3COOH b. trans-2-butene, (E) CH₂CH=CHCH₂ c. butanedione, CH3COCOCH3…

A: HIO4 reacts with 1,2-diols to give aldehydes or ketones.  HIO4 also reacts with cyclic cis-1,2-diols…

Q: Increasing temperature in general reduces the viscosity of polymer solutions. How might the…

A: Viscosity is an important physical property of polymer solutions that can significantly affect the…

Q: For each phase change, determine the sign of ΔPCH and ΔPCS. Use ΔH0, ΔS0. Explain 1. Freezing 2.…

A: For each phase change, determine the sign of ΔPCH and ΔPCS. Use ΔH<0, ΔH>0, ΔS<0 and…

Q: What mass of calcium chloride dihydrate, CaCl2•2H2O is required to prepare 100.0 mL of a 0.211 M…

A: According to the question, The volume of the solution is given by =100.0 mL = 0.1 LThe molarity of…

Q: Calculate the energy difference for a transition in the Paschen series for a transition from the…

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Q: A vessel of volume 22.4 dm³ contains 2.0 mol H₂ and 1.0 mol N₂ at 273.15K. Calculate (a) the mole…

A: Number of moles of H2 = 2.0 mol  Number of moles of N2 = 1.0 mol Total number of moles = 2.0+ 1.0 =…

Q: The chlorination of methane occurs in a number of steps that results in the formation of…

A: Given Reaction : 2CH4(g)+3Cl2g)⟶2CH3Cl(g)+2HCl(g)+2Cl-(g)

Q: You have 0.100 M solutions of acetic acid (p?a = 4.76) and sodium acetate. If you wanted to prepare…

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Q: The French chemists, Pierre L. Dulong and Alexis T. Petit, noted in 1819 that the molar heat…

A: The given equation is 0.64(85.5x+16.0y) = 25(x+y)

Q: 1) Given the reaction 2 A(g) + B(g) ↔ C (g), describe the impact (forward reaction favored/reverse…

A: Introduction Le Chatelier’s Principle states that when a system in a state of equilibrium…

Q: Suppose a small sample of pure X is held at 9. °C and 1.0 atm. What will be the state of the sample?…

A: We have to look into the given phase diagram very carefully and by plotting the point using given…

Q: Calculate the pH and pOH of 314 mL of a phosphate buffer that is composed of 0.25 M HPO² and 0.56 M…

A: Since you have posted multiple questions, we will solve the first one for you. Kindly repost the…

Q: carbon nitrogen oxygen key hydrogen sulfur chlorine Suppose the following chemical reaction can take…

A: Chemical reaction 2C2H2 (g) + 5 O2 (g) →  4CO2 (g) + 2H2O (g)

Q: A sealed sample of fluorine gas has a pressure of 6.80 atm at a temperature of 11°C. If the volume…

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Q: In the organic chemistry experiment of an Extraction of crude napthalene-benzoic acid dissolved in…

A: Organic chemistry experiments often involve the separation of mixtures into individual components.…

Q: A 248-g piece of copper initially at 314 °C is dropped into 390 mL of water initially at 22.6 °C.…

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Q: Write the formula for the conjugate acid of each of the following. (Omit states-of-matter from your…

A: Solution - conjugate acid have one more H atom and one more positive charge so we will add one H…

Q: 6. Noting that 1 kmol contains about 6 x 1026 molecules show that the separation of gas molecules at…

A: Solutions- Ideal gas laws PV=nRT

Q: The Gibbs Free Energy equation is given by the equation: AG=AH-TAS Where: AG =Gibbs Free Energy…

A: Answer: Relation between Gibbs free energy change, enthalpy change and entropy change is given to us…

Q: Find AS for the system, surroundings, and universe when 27.9 g of liquid H₂O is evapourated at 100.0…

A: According to the question, The mass of the water = 27.9 gThe temperature of the evaporation =…

Q: Identify the following compound(s) expected to be the most soluble in butane, CH3CH₂CH₂CH3? 000 O II…

A: we have to select the compound that is most soluble in butane

Q: Calculate the amount of heat needed to melt 129. g of solid ethanol (CH, CH₂OH) and bring it to a…

A: Given mass of ethanol = 129 g Melting point of ethanol = initial temperature = -114.1 oC Final…

Q: Regarding the rate of creaming of pharmaceutical emulsions, which of the following statements are…

A: Pharmaceutical emulsions are suspensions of small droplets of one liquid dispersed in another…

Q: ressure', Why is the slope different between phase 1 and phase 3? O the change in temperature was…

A: For the given situation, we need to select why is the slope different between phase 1 and phase 3…

Q: A solution contains 0.329 M HA (K₂ = 5.65 · 10−4) and 0.551 M NaA. What is the pH of this solution?…

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Q: Deduce the relation between the pressure and mass density, rho, of a perfect gas of molar mass M.…

A: The relationship between pressure, volume, temperature, number of moles, and gas constant for an…