grams of PbBr, w

Q: Which is the best method for carrying out the following two-step transformation (as shown in Reactio...

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Q: Which one of the following compounds (from Figure #5) produced the IR spectrum (from Figure #6) show...

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Q: While ethanol (CH,CH,OH) is produced naturally by fermentation, e.g. in beer- and wine-making, indus...

A: Answer: In this question we have to use ICE table two times for separate equilibriums. From first IC...

Q: 3, Consider the reaction: CO2) + 2H2e CH;OH(@). A reaction mixture in a 5.19-L flask at a certain te...

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Q: Classify each salt as acidic, basic, or neutral. Drag the appropriate items to their respective bins...

A: Given species are KNO3 , NaHCO3 , NH4Cl We have to identify the given compounds/ species are Neutral...

Q: 1. Fill in the blanks of the following electrophilic aromatic substitution reactions. H,SO4 + HNO3 3...

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Q: Write the molecular equation for the reaction of magnesium with oxygen in the air in the presence of...

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Q: 0.17 M NaCl Express your answer to two decimal places. pH =

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Q: There is a difference in acidity of the hydrogens labeled red below. Select all the distinguishing f...

A: if we look at the resonance structures of both the acid then we will find that the stronger acid(pKa...

Q: Determine the pH of a 0.530 M solution of carbonic acid that has an acid dissociation constant of 4....

A: Given C = 0.530 M Ka = 4.4 x 10-7

Q: OH H30* (d) CH3-CH-CH2- ċ-CH2-CH3 A 9. OH H30* (е) CH3-C-CH2-C-CH3 ČH3 OCH3 (f) CH30-C-CH2-C-OCH3 + ...

A: In presence of H+ and heat ,  alcohol compound undergoes E1 elimination through carbocation formatio...

Q: Draw the major product of this reaction. Ignore inorganic byproducts.

A: Carbonyl compound acts as electrophile and alkyne acts as nucleophile. Alkyne attacks carbonyl compo...

Q: e Pre-Lab question 2 in you lab manual on pg 45. nic compounds and Octet Rule. Choose the correct co...

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post ...

Q: . Calculate the number of gram of Ca(NO3)2 that could be produced by reacting 125 ml. of 6M HNO3 wit...

A: Mole can abe defined as a standard unit for measuring large quantities of very small entities such a...

Q: NH2 major product?

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Q: A solution was prepared by dissolving 514 mg of K3Fe(CN)6 in sufficient water to give 758 ml of solu...

A: Mass = 514 mg = 0.514 g V = 758 mL = 0.758 L

Q: What major product (from Figure #17) results from the following reduction reaction (from Reaction #1...

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Q: 1. Calculate the molar concentration of a solution that contains 15 g. of KOH in 225 ml of solution?...

A: 1) Mass of KOH=15 g,  volume=225 ml =0.225 L  molar mass of KOH=56.1056 g mol-1   

Q: An aqueous solution of 3.1472 molal HNO3 was prepared by mixing HNO3 pellets in water. How many gram...

A: The correct option is:  

Q: Which sequence of reactions will successfully carry out the conversion of toluene to m-hydroxybenzoi...

A: -Me is electron donating group (EDG). EDG is Ortho and Para directing group.

Q: K, must be equal to Ke for the equilibrium below Hạ + 2HI Select one: True False 2 Not all equilibri...

A: Answer: All these questions are based on the understanding of equilibrium for a reversible reaction ...

Q: What major product (from Figure #13) results from the following Friedel-Crafts alkylation reaction (...

A: We need to find the major product for given friedel craft alkylation

Q: • 20 grams of nitrogen reacted with 2.5 moles of hydrogen to form ammonia (NH3) gas. What is the num...

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Q: Calculate the entropy change if 0.011 m3 of a perfect (ideal) gas at 273K and 10^5 Pa pressure is is...

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Q: An aqueous solution at 25 °C has a pH of 9.5. Calculate the pOH. Be sure your answer has the correct...

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Q: How would you make 100.0 mL of 0.220 M NaCl(aq) solution using a 100.0 mL volumetric flask?

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the ...

Q: PLS REFER TO THE PICTURE BELOW

A:   Covalent bond:  It is formed due to sharing of electrons inbetween two bonded atoms Covalent bond...

Q: What is true about the given chemical reaction, HF(aq) + H2O(l)  F-(aq) + H3O+(aq)     a. H2O is...

A: According to Bornsted-Lowry theory, when an acid donates a proton to a base then the compound formed...

Q: QUESTION 15 What is the best polarity description of the ammonium ion considering only the bonds and...

A: 15. A molecule is polar only when it's bonds are polar as in ammonia bonding is between nitrogen and...

Q: HCO3- is a Bronsted-Lowry acid in an aqueous solution? b. (CH3)2NH is a Bronsted-Lowry base ...

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Q: Aspirin (C9H8O4) is synthesized by reacting salicyclic acid (C7H6O3) with acetic anhydride (C4H6O3)....

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Q: When the Pb2+ concentration is 1.30 M, the observed cell potential at 298K for an electrochemical ce...

A: The net cell reaction :  Pb2+(aq) + Zn(s) ---> Pb(s) + Zn2+(aq)  The observed cell potential = 0....

Q: Please click here L if image does not display. O is a deactivator and a meta director is an activato...

A:   In CBr3, all three Br atoms are attached to the same carbon atom. It is an electron-withdrawing g...

Q: Code: COFFEE. A single-core cable has a conductor diameter of 13.5 mm and insulation thickness of 8....

A: Given :-  ρ = 7.5 × 108 megaohm-cm = 7.5 × 106 megaohm-m length = 1/4 km = 250 m  conductor diameter...

Q: Question 2 What is the pH of a solution when [OH]= 3.8 x 10P. Is this solution acidic or basic? Show...

A: pH of solution is defined as negative logarithm of hydrogen ions concentration.

Q: Question 22 Match the correct response v NANO3 A. a basic salt NH4CI B. an acidic salt v NH4CIO4 C. ...

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Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

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Q: There is a difference in acidity of the hydrogens labeled red below. Select all the distinguishing f...

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Q: Calculate the pH of the solutions about with 1.3x10^-6 M: a. sodium hydroxide solution b. barium hyd...

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Q: An unknown compound has the molecular formula C12H16O. The unknown compound absorbs strongly in the ...

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Q: When the following equation is balanced properly under acidic conditions, what are the coefficients ...

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Q: Given: Solubility product for a series of hydroxides: BIOOH Be(OH), Tm(OH); K, =4.0 x 1010 =[BiO*][O...

A: Answer: In this question we have to perform the calculation for the saturated solutions and in satur...

Q: Calculate ΔH for the reaction (1) 2C (s, graphite) + H2(g) --> C2H2(g). given the following chemic...

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Q: CO,Me OSIME, CO,Me Br

A: We have to draw the mechanism. And also we have to tell about the stereochemist of the compound and ...

Q: Aqueous sulfuric acid (H,So,) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium su...

A: Answer: 67.0 %

Q: Could you please find the equilibrium pressure (in atm to 3 decimal places) of HBr for the reaction:...

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Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group it H...

A: We have to Name the highlighted chemical group in each molecule.

Q: 1. What mass of cesium chloride must be added to 0.500L of water to produce a 0.40m solution? What a...

A: Given :- molality of CsCl solution = 0.40 m  volume of water = 0.500 L  density of water = 1g/mL  To...

Q: e. calculate A for the reaction 2 COte)+4 H2Ou 2 CHOHa) + 3 Ozte) f. calculate A CH3OHaj +2 Ozw -> C...

A: To calculate ∆n of the reaction, we need to use the formula; ∆n = no. of moles of the product - no. ...

Q: Acetic acid is a weak acid, meaning it does not fully dissociate in water. Instead, there is an equi...

A: The solution is as follows:  

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.