Consider a radio wave with a frequency of 93 x 106 s-1. What is the wavelength, in meters of this wave? Your answer should have 2 significant figures.

Q: Write the net ionic equation to show the formation of a solid (insoluble ionic compound) when the…

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Q: Draw a Lewis structure for C3H8 and another for CH3CH₂NH2 on your paper.

A: Since you asked multiple images questions so as per Q&A guidelines of portal I solved first…

Q: The equilibrium constant, K, for a redox reaction is related to the standard potential, E, by the…

A: In the given question we have to calculate the standard cell potential of the reaction,

Q: Calculate the pH of a 0.17 M solution of HCIO, with Ka = 3.5x10-8. Type your numeric answer and…

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Q: Classify the acidity of acetic acid, CH3COOH, based on its reactivity in aqueous solution. Choose 1…

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Q: What mass of precipitate (in g) is formed when 55.8 mL of 0.500 M AIBr, reacts with excess AgNO, in…

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Q: For the reaction shown, select the expected major organic product. | B || D IV V || H₂ Lindlar's…

A: Lindlar’s catalyst transform an alkyne to cis alkene as the hydrogenation reaction is occurring on…

Q: determine the oxidation number (oxidation state) of each element in the compound CuCO3. for your…

A: Oxidation state of an element is the charge which would have arised on the element if all the bond…

Q: What volume, in mL, of 0.364 M Li2CO3 solution is required to react with 53.9 mL of 0.307 M HNO3.…

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Q: For each of the following unbalanced equations, calculate how many moles of the second reactant…

A: Given, moles of 1st reactant = 0.415 moles of 2nd reactant = ? a. Co + F2---> CoF3 ____mol F2…

Q: QUESTION 2 The intermediate formed in the first step of the following reaction is: CH3 1. BH3, THF…

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Q: The equilibrium constant, KcKc, for this reaction is 55. H2(g)+I2(g)⇌2HI(g) If the equilibrium…

A: Kc is equilibrium constant

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, she fills…

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Q: Calculate the energy required to heat 211.0 g of water from 47.4 °C to 66.5 °C. Assume the specific…

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Q: Consider a bcc lattice, with cube side length a = 0.83 nm. What is (approximately) the linear…

A: We need to find the linear Density along the close packed direction of the bcc lattice. Edge length…

Q: Draw a Lewis structure for NH4+. Based on this Lewis structure, the calculated value for the formal…

A: Since, Lewis structure can be drawn by calculating the valence electron present in outermost orbital…

Q: ▼ Part A For the reaction 2Co³+ (aq) + 2Cl(aq)→2Co²+ (aq) + Cl₂ (g). E = 0.483 V what is the cell…

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Q: Which of the following molecules is not chiral? A. B. 3-chlorohexane C. 3-chloropentane D.…

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Q: 6. A compound formed by element X and Y crystallizes in the cubic structure where Y atoms are the…

A: A cube has 6 faces 8 corners 12 edges

Q: please explain more

A: A catalyst is a substance that, without being consumed by the process, speeds up a chemical reaction…

Q: calculate the cell potential for the following reaction that takes place in an electrochemical cell…

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Q: A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution…

A: Mass of sample mixture  = 0.3146 g          NaCl + AgNO3 = AgCl + NaNO3  Let us consider mass of…

Q: MOH -Br Br2/H20 || он H Br E ||| ..Br -OH Г IV Br •H ОН он -Br H

A: Which one of the following options is correct

Q: The pH of a 0.50 M solution of ethylamine CH3CH₂NH2 is 12.21. Calculate the Kb of ethylamine. Use…

A: we have to calculate the value of Kb for ethylamine

Q: Are these the same molecule? same molecule isomers different molecules ~

A: Isomers have same chemical/molecular formula but different arrangement or attachment of…

Q: Calculate the standard free-energy change(kJ) for the reaction at 25°C Use the standard reduction…

A: Given -> 2Au3+(aq) + 3Mg(s) <-------> 2Au(s) + 3Mg2+(aq)

Q: Write the name and draw the structure of a saturated hydrocarbon with four carbon atoms.

A: Saturated Hydrocarbon :  A saturated Hydrocarbon is one in which all of the carbons atoms are…

Q: a current of 3.25A is passed through a Ni(NO3)2 solution how long in hours would this current have…

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Q: 3) Calculate the equilibrium constant K for reaction N₂O₂(g) → NO₂ (g) 2 at 298 K. C

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Q: Classify the acidity of sulfuric acid, H₂SO4, based on its reactivity in aqueous solution. Choose 1…

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Q: how about in synthesis of aspirin

A: Ethanol is used in synthesis of aspirin because :

Q: The equilibrium constant, Kc, for the reaction N2O4(g)⇌2NO2(g) is 5.0×10^-3. If the equilibrium…

A: Kc is equilibrium constant and it is equal to product concentration divide by reactant concentration…

Q: Which of the following is an oxidation-reduction reaction?     A)  Ba(C2H3O2)2(aq)  +  Na2SO4(aq)…

A: In oxidation reaction, Oxidation number increases or number of oxygen increases or number of…

Q: Buffers 1. Determine the pH of a solution that contains 0.376 M hydrogen phosphate (HPO ) and 0.468…

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Q: Phosphorous forms a monatomic ion which has the electron configuration of a noble gas. What is the…

A: Phosphorous has atomic number 15 when it added three electrons it becomes 18 which is noble gas…

Q: For each row in the table below, decide whether the pair of elements will form a molecular or ionic…

A: Aluminum and magnesium are both electropositive elements, so there will be no bond between them.…

Q: For the reaction below, how many different organic products would be expected? A one B two three D…

A: This reaction is an example of mercuration - Demercuration reaction . The mechanism of given…

Q: I need to fill in for what's highlighted in blue bc it was incorrect. not solve for the "?"

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Q: determine the cell notation for the redox reaction given below 3Cl2 (g) + 2Fe3+ --> 6Cl(aq) +…

A: Electrochemical cell is the cell in which chemical energy is converted into electrical energy.…

Q: Which bond is the most polar? Hint: Consider the electronegativity of each element. Br-Br O C-P B-O…

A: Correct answer - B-O  The electronegativity of elements are as follows  Carbon - 2.55 Phosphorus -…

Q: (a) (b) CH₂CHCH₂CH3 + CH₂CH₂S Na+ CH3 (c) CH₂CHCH₂CH₂Br + NaT. (e) Cl (d) (CH3)3N + CH₂I acetone (f)…

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Q: Which set of quantum numbers (n, l, me, ms) is correct when n = 3? O3,1,-1,-1 3,3,-1,-1 3,1,2,-2…

A: Correct answer -->  3,1,-1, -1/2

Q: Vinegar is about 5.0% acetic acid by mass. Assuming that the density of vinegar is that of water at…

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Given -- >  (-1.8 x 105 kg.m/s )  We know that , 1kg = 1000 g  1 m = 100 cm

Q: For the following reaction, 5.96 grams of iron are mixed with excess chlorine gas . The reaction…

A: Well, it is given Chlorine gas is in excess so it is clear that iron is the limiting reagent. so…

Q: What is the pH of a 0.00520 M solution of NaOH? 1 4 7 +/- 2 8 12.7 3 6 9 O X x 100 +

A: pH is defined as negative logarithm of hydrogen ion concentration pOH is defined as negative…

Q: Calculate the energy required to heat 211.0 g of water from 47.4 °C to 66.5 °C. Assume the specific…

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Q: Question 2: Give IUPAC name of the following CH₂

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Q: Which species below has eight valence electrons in its Lewis symbol? F* S²- O Si Mg+ O Art

A: S-2 is the only above species which has 8 valence electron.

Q: A chemist measures the enthalpy change AH during the following reaction: Sg(s) + 24 F₂(g) →8 SF 6(g)…

A: Since,According to Hess's law change of enthalpy in a chemical reaction is same regardless of…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.