Which of the following groupings contains only representative elements?

Q: Photons of infrared radiation are responsible for much of the warmth we feel when holding our hands…

A: Mass of water = 175 g Initial temp of water = 25°C Final temp = 40°C Wavelength = 1.5 × 10-6 m No of…

Q: ||| O CHEMICAL REACTIONS Dilution X pouring out some 1.94 S mol L A chemist must prepare 500. mL of…

A: We will solve this question using molarity equation.

Q: Write a net ionic equation to show why the solubility of Pb(OH)₂(s) increases in the presence of a…

A: In aqueous solution PbOH2 s ionizes in the following way -                             PbOH2 s  ↔…

Q: A sample of sand has a mass of 50.5g and a volume of 331.5 cm^3 . Calculate its density in grams per…

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Q: A bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of…

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Q: The Ba2+ concentration in a saturated solution of barium fluoride is measured and found to be…

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Q: Calculate the volume of a 1.420 M NaOH solution required to titrate 22.55 mL of a 1.500 M H3PO4…

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Q: Which of the sets of reagents below could make the alcohol shown below? ? Partial credit is…

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Q: Which of the following processes have a S < 0? water freezes isopropyl alcohol condenses methanol…

A: Entropy is the randomness in the system. Higher the randomness higher the entropy. Randomness…

Q: Question number 14 When the ionic compound KCIO4 is dissolved in water, which species will react…

A: Answer: KClO4 is a salt made from the reaction of KOH and HClO4 and we have to find out does any of…

Q: What are the most likely products formed from mixing the following neutral compounds? HINT: The most…

A: As per the guidelines I am solving first question only if you need whole solution then post…

Q: h) An electron in a hydrogen atom makes a transition from an orbital in which n = 2 to an orbital in…

A: When there is a transition from lower energy level to higher energy level then absorption of energy…

Q: QUESTION 2 Which is an appropriate pair of two starting materials for the acetoacetic ester…

A: Here we to synthesize hepatane-2- one from acetoacetic ester.

Q: 11. If in lab you run out of dichloromethane (CH₂Cl2), but you have carbon tetra- chloride (CCl4)…

A: Given that, a lab is run out of dichloromethane (CH2Cl2). They have only carbon tetrachloride (CCl4)…

Q: The van der Waals equation for real gases contains an a parameter and a b parameter. Which statement…

A: The gases which have intermolecular forces of interaction between them are called real gases. They…

Q: So4-2  draw the Lewis structure

A: Lewis structure :- It is the simplest structure of any molecule in which all the valence electrons…

Q: Cacodylic acid (dimethylarsinic acid, HAsO2(CH3)2HAsO2(CH3)2) is a common buffer used in biology to…

A: We have to calculate the pH of buffer solution

Q: Part A Rank these systems in order of decreasing entropy. Rank from highest to lowest entropy. To…

A: The Answer to the following question is-

Q: When the ionic compound All3 is dissolved in water, which species will react with water to a…

A: When a Ionic compound is dissolved in water then it breaks up into cation and anion. These cation…

Q: Consider the following reaction: COg)+H,Og) ≥ CO2(g)+H2(g) A. If 0.800 mol each of CO(g) and H₂O(g)…

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Q: How many grams of NaC3H6O3 should be dissolved in 500.0 ml of 0.100 M HC3H6O3 (lactic acid) to make…

A: An acid buffer is a mixture of a weak acid and its salt with a strong base. It is given that pH of…

Q: -1 A 56.1 g sample of polystyrene, which has a specific heat capacity of 1.880 J-g °C¯¹₁ , is put…

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Q: Provide the IUPAC name for each of the following acid chlorides. (b) " i "u "uo CI CI (c)

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Q: balancing reaction and you need to fill in the blanks  Do not leave any space blank- if the value…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,

Q: HO dil. H3PO4 heat

A: When tertiary alcohol react with acids like H3PO4 or H2SO4 then elimination reaction takes place and…

Q: 3. Propose a mechanism. Is this an Sw1 or Su2 reaction? What is the relationship between the two…

A: According to the bartleby guidelines for the multiple questions I can solve only first question. So…

Q: Practice; Write a balanced equation, predict products and identify a solid with (s) Sodium…

A: If the number of all the atoms are same in both reactant side as well as in product side, then the…

Q: O ACIDS AND BASE Calculating the composition of a buffer of a given pH What mass A chemistry…

A: According to the question we have, The Volume of weak base diethylamine C2H52NH solution is given by…

Q: What is the pH of a 0.190 M C6H5CO2H M solution if the K₂ of C6H5CO2H is 6.5 x 10-5?

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Q: What are the stereochemical aspects of Allopurinol?

A: The stereochemical aspects of allopurinol are....

Q: Calculate the number of grams of xenon in 3.145 g of the compound xenon tetrafluoride. mass of…

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Q: .5 mol of no2 is placed in a 2.0 l flask to create no and o2 calculate the equilibrium concentration…

A: We will first construct the ICE table. After constructing the same, we will find the expression for…

Q: diprotic weak acid H₂A, Kal = 2.1 x 106 and K₁2 = 7.6 x 10-9. the pH of a 0.0400 M solution of H₂A?…

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Q: НО. 1. Naº 2. Br 3. H₂, Pd

A: The cyclohexanol reacts with Na metal to produce sodium salt of cyclohexanol. The sodium salt of…

Q: In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.90 moles of Mg react with 3.56 moles of I₂, and…

A: Magnesium reacts with iodine to form magnesium iodide. The equation for the balanced chemical…

Q: Which of the following would have the highest boiling point? a.) H₂S b.) C₂H₅OH…

A: Here we have to predict the compound which  have  highest  boiling point from the following given…

Q: A student has a solution of sodium nitrate and believes it is saturated. Which statement provides…

A: Solutions are liquids that contain dissolved substances inside, usually former solids. Dissolving…

Q: Using data found in Appendix E of your textbook calculate the nonstandard emf for each of the…

A: Dear student since you have posted multiple questions we will solve the first question for you if…

Q: Calculating the solubility of an ionic compound when & Calculate the solubility at 25 °C of AgCl in…

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Q: Determine the relative solubilities of the following zinc compounds: Compound 7n (DO) Ksp Relative…

A: The equilibrium between the soluble ions and insoluble salt can be described by the solubility…

Q: Write the equation that represents the standard enthalpy of formation of glucose, C6H1206(s), and…

A: The standard enthalpy of combustion of carbon, C (s) = −393.5 kJ/mol  The standard enthalpy of…

Q: A 56.0 g sample of brass is put into a calorimeter (see sketch at right) that contains 100.0 g of…

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Q: Give the general formula for a normal alkene. OCH OCH₂N OCH2 OCH C₂H₂

A: Since, Alkene are those substance which have atleast one double bond present. Thus,

Q: The dissolution of ammonium nitrate occurs spontaneously in water at 25 °C. As NH4NO3 dissolves, the…

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Q: Which of these would a chemist most likely study?     why a ball rolls down hill What happens when…

A: 1)Consider the first scenario a ball rolling down a hill is completely affected by the earth's…

Q: Suppose that you add 23.4 g of an unknown molecular compound to 0.250 kg of benzene, which has a K₁…

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Q: calculate ph of 50.0 mLmL of 0.15 molL−1molL−1 HCOOHHCOOH (Ka=1.8×10−4Ka=1.8×10−4) with 80.0 mLmL of…

A: For acid buffer, Henderson equation is  pH = pKa + log [salt][acid] for base buffer, Henderson…

Q: Rank the boiling points of the following compounds from lowest to highest: C₁2H22011 (sucrose), O₂,…

A: Higher the intermolecular forces between the molecules higher will be boiling point of that…

Q: How many possible alkynes exist with a molecular formula of C,Hg? 01 02 03 04

A: Structural isomers: Same molecular formula but different structure

Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a…

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