CI CI (d) Observer

Q: Calculate the pH of the resulting solution if 26.0 mL of 0.260 M HCl(aq) is added to 36.0 mL of 0.26...

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Q: 3-(2-bromo-3-methylbutyl)-4-chloro-2-ethyl-1-methylcyclopent-1-ene How do you draw this molecule?

A: In the molecule their is mainchain on which substitutional groupsare attach over it to form the mole...

Q: To manufacture a vehicle, four tires and one steering wheel are required. How many cars can be manuf...

A: To Solve this problem we will use the given data .

Q: What is the relationship between vapor pressure at a temperature and its melting point so that subli...

A: When a solid heated to give gas directly without leaving any residue is called sublimation this meth...

Q: What is the pH of a solution which is 0.021 M in weak base and 0.039 M in the conjugate weak acid (K...

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Q: Draw out the peptide IYV and clearly label/identify all the Phi, Psi, and peptide bonds present in t...

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Q: -In the compound Ka[Fe(CN)6], the oxidation state of iron and its coordination number, respectively,...

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Q: You put a pot of water on the stove and the water begins to boil. System: Surrounding: Direction of ...

A: Exothermic reaction are those reaction in which heat is evolved while reaction in which heat is abso...

Q: HOw does yo Questions and Problems Q.7 An infant has a mass of 3.40 kg. What is the weight of the in...

A: To Solve this problem we have to do unit conversion .

Q: You add hydrochloric acid slowly to the water and notices that the flask feels hot. What is the syst...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Na,CO3(aq) + CaCl,(aq) → 2 NaCl(aq) + CaCO3(s) Calculate the volume (in mL) of 0.200 M Na»CO3 needed...

A: Given, mass of CaCO3 = 2.00 g molar mass of CaCO3 = 100.09 g/mol => moles of CaCO3 = mass of CaCO...

Q: Compute for the volume (in mL) of 0.5 M acetic acid and mass (in g) of sodium acetate needed to prep...

A: The concentration of buffer to be prepared is given as 3mM but the volume of buffer is not mentioned...

Q: Which increases the rate of a chemical equation? Decreasing pressure of gases O Decreasing pressure ...

A:  Generally Rate of reaction depends upon following factors :   Temperature . Concentration of react...

Q: Bismuth-209 has one of the longest half lives around at around 2.9x1019 . If you start with 10 grams...

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Q: If 0.0916 g P4O, is mixed with 0.113 g H2O, what is the theoretical yield? P406+6H2Ó → 4H3 PO3 O 0.1...

A: Limiting reagent is the reactant that is completely consumed in the chemical reaction.  Theoretical ...

Q: Which row of the ICF table is defined by the balancedequation’s coefficients?

A: NOTE: It will be ICE i.e. initial-change-equilibrium table and not ICF.  

Q: Consider the galvanic cell based on the following half-reactions: Mn2+ + 2e + Mn e° = -1.18 V Cd2+ +...

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Q: 0.2 0.5×10-4 1x10-4 1.5x10-4 2x10-4 [Fe(SCN2+)]equ, (M) y = 4.26442 × 103 x + 0.0202852 R2 = 0.99990...

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Q: Compare and contrast the physical and chemical properties of the following pairs of isomers. Propan...

A: Compounds that contain exactly the same number of atoms but differ in their atomic arrangement is kn...

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the ...

A: Given: Mass of Mg reacting = 0.0228 g. Volume of H2 produced = 22.57 mL = 0.02257 L                 ...

Q: po arrangement of electrons.. Using terms such as coulombic and exchange energies, determine the dif...

A: Different possible arrangements are shown :

Q: Suppose a 500. mL flask is filled with 1.5 mol of O, and 0.60 mol of NO. The following reaction beco...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: A chemistry graduate student is given 450. mL of a 1.20M ammonia (NH,) solution. Ammonia is a weak b...

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Q: 5. For the reaction H 2(g) +I 2(g) 2HI(g), K = 50.2 at 445°C. If [H 2] = [I 2] = [HI] = 1.75 x 10 3 ...

A: The reaction quotient, Qc, is calculated in the same way as the equilibrium constant calculated by u...

Q: Which molecular shapes are always polar, regardless of the atoms in the molecule? (Hint: there are 5...

A: A molecule will be a polar molecule if its dipole moment is not zero. it will be a non-polar molecul...

Q: Question 7 What is the molarity of a solution made by dissolving 8.56 g of potassium acetate (KC2H3O...

A: Given data : Mass of KC2H3O2 = 8.56 g Volume of water = 750.0 mL = 0.750 L

Q: Consider the following balanced reaction: 2C4H10+ 1302 → 8CO2+ 10H2O 0.237 mol C4H10 and 1.65 mol O2...

A: Given : We have to calculate the moles of carbon dioxide.

Q: Write the mass balance equations and charge balance equations for 0.20 M Ba(OH)2. Note that Ba(OH)2 ...

A: Here we have to write mass balance and charge balance equation for 0.2 M Ba(OH)2 aqueous solution.

Q: b.) How is the rate Of disappearance of S,0J -relnted to the rate of It appeatratice of Ij ? (al.

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Q: Consider the structures of greenhouse gases, CO2 and CH4. Carbon dioxide has a very long lifetime in...

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Q: What is the pH of a buffer solution that is 0.50 M acetic acid and 1.0 M sodium acetate (Ka = 1.8 x ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: When 51.96 grams of fictional compound X is added to water to make 348.0 grams of solution, the temp...

A: Mass of compound X is = 51.96 g Molar mass of compound X is = 92.68 g/mol Specific heat of solution ...

Q: a transeterification reaction, a triglyceride reacts with an alcohol to form an ester and glycerol. ...

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Q: 1. Circle and name all of the functional groups in the following molecules. H. .N. ОН ОН NH H2N HO F...

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Q: The radioactive nuclide Co has a shelf-life of 17.5 hours. What mass Co remains from 0.0100g sample ...

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Q: Given the Lewis electron-dot diagram: H:C:H Which electrons are represented by all of the dots? O a....

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Q: 4. Determine the oxidation state for all atoms in each of the following compounds a. KMNO4 b. NiO2 c...

A: Oxidation state is the hypothetical charge an atom would have if all bonds to atoms of different ele...

Q: U. mmo n AA reaction between nitric acid and calcium E 6. Write and balance each equation. Determine...

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Q: You will be provided with 3x10 mL of a 0.20 M solution of an unknown acid. You will need to create t...

A: The answer is as follows:  

Q: Do chelators reduce conductivity? Do water-miscible solvents such as mono ethylene glycol, glycol et...

A: A question based on coordination complexes that is to be accomplished.

Q: calculate the percent error

A: 1. Actual density = 1.15 g/mL Theoretical density = 1.0 g/mL % error = (Actual - Theoretical) / Theo...

Q: The elements lithium and oxygen react ex- plosively to from lithium oxide (LigO) accord- ing to the ...

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Q: Ammonia (NH, gas and oxygen (O gas react to form nitrogen (N,) gas and water (H,O) vapor. Suppose yo...

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Q: 27. Iodine has an electronegativity value of 2.5. Given the electronegativity of C, N, O, and P (2.5...

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Q: You are given a 125 mL aqueous solution containing an unknown amount of NH4Cl salt. The solution has...

A: Given that, pH of solution =4.82  volume =125 ml =0.125 L  mass of NH4Cl =?   

Q: A local FM radio station broadcasts at a frequency of 88.2 MHz. Calculate the energy of the frequenc...

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Q: 1. (a) Draw the structures of the eight isomeric pentyl alcohols, C;H1„OH. (b) Name each by the IUPA...

A: Compounds which possess same molecular formula but they differ structurally  are called structural i...

Q: In the lab, you used 2.0 mM FD&C Yellow Dye No. 6 solution. How much solid dye, molar mass 452.36 g/...

A: Molar mass of solid dye = 452.36 g/mol Volume of solution, V2 = 2L Molarity of solution, M2 = 4.89mM...

Q: hamess CH3-CH cH3- cH3 -CH cH3-CH cH

A: In IUPAC  nomenclature of ether the most complex group is named as alkane as root word where as the ...

Q: 3. A 100 mL sample of hard water is titrated with 22.4 mL of the EDTA solution from problem 2. The s...

A: Answer :