Example: A phosphorus oxide contains 43.64% P and 56.36% O and its experimentally determined molar mass is 283.89 gimol. What is the empirical and molecular formula?

Q: Question 5 In the electrolysis of an acid solution, oxygen can be produced by the following half-rea...

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Q: chemist has a 0.700 M solution of potassium hydroxide (molar mass = 56.1 g/mol). What mass of KOH is...

A: Molarity is defined as number of moles of solute divide by volume of solution

Q: Calculate the pH at the equivalence point for the titration of 0.100 M methylamine (CH, NH,) with 0....

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Q: 7. D-glucose, blood sugar, exists in two forms; ring open and ring closed. Don’t worry about the che...

A: Let's understand all of these one by one. Assignment of the priorities of the groups or atoms in a F...

Q: `III IV A) >V>II>IV>III B) IV>II>I>V>III C) II>I>V>III>IV D) IV>I>V>II>III E) IV>II>V>I>III

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Q: Penicillin G has a pH of 5.0 to 7.5 pKa of 2.72 The pH is higher than the pKa of 2.72, meaning penic...

A: Please find the below attachments.

Q: 3. What is the boiling point of a 6.95M solution of C12H22011 in water? A. 105.2 C B. 107.0 °C C. 10...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: The Kjeldahl method was used to determine the nitrogen content of a soil sample. 25 g soil sample wa...

A: Solution: We know Kjeldahl method is used to determine the nitrogen content of the any sample. Overa...

Q: Calculate the molar solubility of Hg,Cl, (K = 1.20 x 10) in 0.10 M NaCl, considering the effect of i...

A: Given,  Solubility product of Hg2Cl2  = Ksp = 1.20×10^-18 Concentration of NaCl =  0.10M Here, commo...

Q: Question 1 You were asked to record observations before, during and at the end of the experiment. Be...

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Q: Which of the following represents the reaction of the weak base, CH3CH2COO", in water? O CH3CH2COO+ ...

A: Weak bases = CH3CH2COO^- 

Q: Question 6 of 20 Provide the correct systematic name for the compound shown here. 5- N- 4- 3- 2- N,N...

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Q: Calculate the pH of a 0.0015 M solution of C6H5NH2 (Kb for C6H5NH2= 3.80 x %3D

A: given :- concentration of C6H5NH2 = 0.0015 M  Kb for C6H5NH2 = 3.80 × 10-10  To calculate :-  pH of ...

Q: milliliters o

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Q: European friends tell you they are pleased because their new car gives them 15 kilometers per liter ...

A: Given -> Fuel = 15 kilometres per liter 1 mile = 1.6 Km 1 gallon = 3.8 liters  

Q: Consider the reaction 3X + 2Y → 5C + 4D How many moles of C can be synthesized from 37.0 moles of Y...

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Q: A 600.0 mg sample consisting of only CaC2O4and Mg C2O4is heated at 500oC converting the two salts to...

A: Answer: This question is based on the stoichiometric calculation where ratio of the mass of a reacta...

Q: 6. An aqueous solution A is prepared by dissolving 0.1 mol potassium chloride and 0,1 mol sodium nit...

A: The given solutions A and B are prepared by dissolving different strong electrolytes in the water. S...

Q: What are the intermolecular forces present in acetone?

A: Note: As per company policy we are supposed to attempt first question only , please repost other que...

Q: a Calculate AH° for the reaction 2K(s) + 2H20(1) → 2KOH(aq) +H2 (g) Substance and State AH (kJ/mol) ...

A: Mass of water given = 1000 gram Molar mass of water = 18 g/mol  

Q: Calculate the pH for each case in the titration of 50.0 mL of 0.230 M HCIO(aq) with 0.230 M KOH(aq)....

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Q: Using a first to last order structure, explain why and write the order in which K, Au', Pb", Al", Cu...

A: The solution of the question is given below: 

Q: A potassium sulfate solution reacts with barium bromide solution to produce a precipitate of barium ...

A: A balanced equation can be defined as the equation in which equal number of atoms of each element ar...

Q: The specific heat of a certain type of metal is 0.128 J/(g.°C). What is the final temperature if 305...

A: Given :-  mass of metal = 77.1 g  initial temperature = 20.0°C  specific heat of metal = 0.128 J/(g°...

Q: Excess sulfur reacts with 0.565 g of iron fillings to give 1.051 g of iron sulfide. Find the empiric...

A:

Q: 4a. Vs What is the relationship between these two molecules? OH 4b. Он Vs What is the relationship b...

A: Assign priorities to the groups attached to the chiral centre as per CIP rule(Cahn-Ingold-Prelog) If...

Q: 1. Which will be the major product if 3,3-demethyl-2- butanol to react in 85% of H3P04? a. 2,3-demet...

A: Alcohol gives dehydration reactions when they react with a strong acid like H2SO4 or H3PO4 to form a...

Q: Phosphoric acid is a triprotic acid with the pK, values pK1 = 2.148, pK2 = 7.198, and pK3 = 12.375. ...

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Q: Part A A compound of X and Y isX by mass. The atomic mass of element X is the atomic mass of element...

A: Let us assume the empirical formula of the compound will be XaYb  X = 3/4 Y The compound is 2/3 X by...

Q: Show the mechanism for the following transformation (a variation of the Hofmann rearrangement) e OH

A: ->base can abstract most acidic hydrogen . And in this way there is formation of isocyanate.    

Q: O STATES OF MATTER Finding mass or volume from percent concentration Ketamine, sometimes used as an ...

A:

Q: A reaction occurs according to the following balanced chemical equation: 5 A (s) + D (aq) 2 E (g) + ...

A: Given :-  5A(s) + D(aq) → 2E(g) + 5G(aq)  Mass of A = 4.22 g  Molar mass of A = 170.32 g/mol  To cal...

Q: Question 5 In the electrolysis of an acid solution, oxygen can be produced by the following half-rea...

A:

Q: A teacher adds a small amount of a substance to an erlenmeyer flask while demonstrating titration. ...

A: Titration is the process to determine the unknown concentration of analyte.

Q: In a series of experiments on the decomposition of dinitrogen pentoxide, N205, rate constants were d...

A:

Q: 8.2 Distinguish between a boson and a fermion. Provide examples of each type of particle.

A: We have to discuss the distinguished between a boson particles and fermion  with example.

Q: Flow Chart for the Determination of Group I Cations Ag', Pb, Hg, +6 M HCI ! centrifuge Solid AgCl, P...

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Q: he conjugate acid c

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Q: 9. Calculate [OH-] and pH for (a) 1.5 X 10-3 M Sr(OH)2 (b) 2.250g of LiOH in 250.0 mL of solution ...

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Q: Calculate the molar mass of Al2 O3. Molar mass = = g/mol Calculate the molar mass of Al(NO3)3. Molar...

A: given :-  molecular formula :  Al2O3  Al(NO3)3  To be calculated :-  molar mass of given compounds

Q: ich orbital c

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Q: Predict the products of the following acid-base reactions, and predict whether the equilibrium lies ...

A:   1) Ans : a)  O2-(aq) + H2O(1)     <--->                                     2 OH-; 100% to p...

Q: Which of the following compounds would produce the highest concentration of I ions when 0.10 mol of ...

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Q: The percent by mass of nitrogen for a compound is found to be 63.7%. Which of the following could be...

A: Given -> Percent by mass of nitrogen = 63.7%  

Q: Consider the following reaction and its equilibrium constant: I2(g) + Br2(g) ⇌ 2 IBr(g) Kc = 1.1 × 1...

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Q: Show the mechanism for the following transformation HO.

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Q: How much heat is removed from the condensation of water at 25°C? Given the standard entropy of the f...

A: In this question we need to find out latent heat of vaporization. Let us solve this step by step. 

Q: The industrial chemical transformation of alkenes into aldehydes involves the usage of CO ligand. (i...

A: This reaction of conversion of alkene into aldehyde with the help of CO in presence of catalyst is k...

Q: A 100 80 60 40 10 20 30 40 50 60 70 80 Temperature (°C) Creative Commons license. Wikipedia. https:/...

A:

Q: What would an anime, a carboxylic acid, an eater, and a hemiacetal look like if they say in the huma...

A: Amines, carboxylic acid, esters, and hemiacetals are found in our body. Some are naturally present i...

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.