determine the number of atoms of 75.82g of Ca(No3)2

Q: 1. Adding a solute to a solvent freezing point because the chemical the forces between the makes it ...

A: Given: Effect of adding solute on the freezing point of the solvent.  

Q: Rank the following isomers of C,H18 in terms of their boiling points. 2,4-dimethylhexane octane 4-me...

A: The isomers of C8H18 given are,  

Q: In a calorimetry experiment similar to the one performed today, a student used 50.0 mL of 1.0 M NaOH...

A: Since you have posted multiple questions, we are entitled to answer the first only. 5) Given: Concen...

Q: You wanted to produce 2-nitrobenzene-1,4-dicarboxylic acid. For that purpose, you started he reactio...

A: The correct synthetic method applied here is :- Starting with alkyl benzene(toulene)  which upon nit...

Q: Balance the following combustion reaction: (Write whole-number coefficients in each box.) 2,3,4-trim...

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation ...

Q: Be + 2 HCl --> BeCl2 + H2            My theoretical yield of beryllium chloride was 10.7 grams.  I...

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If y...

Q: 37. What is the boiling point of a solution that is a mixture of 37.5 mol% A and 62.5 mol% B? bpt. m...

A: Given phase diagram:

Q: Explain the observed stereo-selectivity in the formation of product using Felkin-Anh model. (c) Ph. ...

A:

Q: Give the functions of the following ingredients, then name a branded/commercial skin or hair care pr...

A: A question based on general chemistry that is to be accomplished.

Q: Question 23 Nitrogen ions are added to the soil by the formation of organic and inorganic acids when...

A: Organic acid is an organic compound which have acidic properties. The most common organic acids are ...

Q: List combination of quantum numbers (n, l, ml) that could describe the size, shape, and orientation ...

A: The answer is as follows:  

Q: 2. Complete the table below. Indicate what is observed if each test is positive. State what this res...

A: Completion of the table in which the indication what is observed if each test is positive is given b...

Q: Fill in the gaps in the following table: Symbol P3- Protons 35 49 Neutrons 45 66 118 Electrons 46 76...

A:

Q: The boiling point of an alkane is lower than the alkane immediately after it in the series. Select t...

A:

Q: Draw the titration curve that would result if 35 mL of a 0.2 M CH3NH2 (kb = 4.60 x 10-4) were titrat...

A:                   [CH3NH2] = 0.2 M Volume of CH3NH2 = 35 mL                            Kb = 4.60 * 1...

Q: 1. The decomposition of azomethane (C2H6N2) creates nitrogen gas and ethane gas (C2H6) with a rate c...

A:

Q: e following order depen phosphorus: OMe)s > PPH3

A: If substrate has less than 18 electrons, then it follows associative path. Here if we look at the re...

Q: Some N2 gas is mixed with some O2 gas, and The picture shows a representative sample of the mixture....

A: Given : We have to calculate the mole fraction and partial pressure .

Q: Predict what would happen to the amount of CO2(g) when the equilibrium is disrupted by:     Decre...

A: The reaction given is, => NH4NH2CO2 (s) → NH3 (g) + CO2 (g)                ΔH > 0  

Q: For the unbalanced redox reaction in basic solution, Cl2(g) → CIO4¯(aq) + Cl(aq) + Cl (aq) what is t...

A: For the balanced oxidation half reaction first balance the atoms and then balance charge by adding e...

Q: Predict the major product, Z, of the following reaction sequence. 1) NANH, 2) D. i) Give a detailed ...

A: In first step of reactions alkylation of terminal alkyne occurred.  In second reaction reaction name...

Q: ammonium acetate carbonate dichromate hydroxide nitrate oxalate sulfate phosphate permanganate nitri...

A: polyatomic ions An ion composed of two or more atoms

Q: Identify the structural effect/s present on the given molecule:

A: The functional group of a molecule is a key component and is responsible for providing notable chemi...

Q: The structure given is Escitalopram, an active enantiomer of citalopram and works as an anti-depress...

A:

Q: The following reaction is monitored as a function of time: AB→A + B. A plot of 1/[AB] versus time yi...

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only....

Q: 1. construct an energy diagram to show the variation in the free energy of the molecule as the front...

A:

Q: If an atom has 7 protons, how many electrons does it want to gain in order to fill its valence shell...

A:

Q: The structure given is Escitalopram, an active enantiomer of citalopram and works as an anti-depress...

A: Hybridisation can be defined as the process of mixing of pure atomic orbitals to form molecular orbi...

Q: The initiation step of radical halogenation of alkanes involves homolytic bond formation. Select the...

A: Radical halogenation is the substitution of hydrogen atom of alkane by a halogen atom.

Q: the foldi

A: Here, Acetone-CH3 -CO-CH3Urea-NH2 -CO-NH2

Q: Consider this two-step mechanism for a reaction. NO2 (g) + Cl2 (9) →CINO2 (g) + Cl (g) Slow NO2 (9) ...

A: We know a faster reaction have lowest activation energy and a slower reaction should have highest ac...

Q: H2SO4 → H2O + SO3            If I start with 89 grams of sulfuric acid and produce 7.1 grams of wa...

A: Introduction :  Percentage yield can be defined as the ratio of actual yield to theoretical yield mu...

Q: dean calciur on is over (c

A: 1. Calcium is more reactive then magnesion . As 'Ca' reacts with both cold water and hot water .  wh...

Q: c) Determine products A to C from the following reactions, some reaction may produce more than one p...

A: The products are as follows:  

Q: Could you simply explain how to alter the solubility of organic bases using extraction? How do you a...

A: Here we have to explain how solubility of organic base and acid change with during extraction.

Q: A. Calculate the standard enthalpies of the following reactions from the standard molar enthalpies o...

A:

Q: 6. Idantify the orerapping orbitalou im volvet i the formation of cach Yum bered bond. NO. HO-C-H ČH...

A: We have to tell the overlapping orbitals involved in formation of each number of bonds in the below ...

Q: A primary hydrogen is the fastest to replace during radical substitution in alkanes. Select the corr...

A:

Q: Question 5 of 8 How many moles of lithium hydroxide would be required to produce 52.0 g of Li:COs in...

A:

Q: Give a single benefit for each polymerisation from carrying them out under a nitrogen atmosphere? (...

A: Introduction: The polydispersity index (PDI) is dependent on the two parameters, i.e (I) number aver...

Q: Rotation around a single bond gives rise to isomers in alicyclic alkanes. Select the correct respons...

A: Isomer are pair of compound which although have same molecular formula but different structural form...

Q: What is my percent yield of titanium (II) oxide if I start with 20 grams of titanium (II) sulfide an...

A: The given reaction is balanced :                TiS + H2O →  H2S + TiO              Initial amount o...

Q: Post Assessment Directions: Choose the letter that corresponds to the correct answer. Write your ans...

A: First law of thermodynamics states that energy can neither be created nor be destroyed.  Hess law st...

Q: Write the IUPAC name for the compound below. Be sure to use correct punctuation. Keep the informatio...

A:

Q: Use linear approximation, i.e. the tangent line, to approximate 2.86° as follows: Let f(x) = x³. The...

A: Given that : f(x)=x3

Q: ve an IUPAC name for each of the following mole clude the prefix cis- or trans- when appropriate. CI...

A: IUPAC name of given compounds are:

Q: 6. The rate constant of the following second-order reaction of hydroxyl radical with 1,2- dichloroet...

A:

Q: What does a theoretical yield of 1.38g mean ?

A: Given, Theoretical yield = 1.38 g       Required,                     What is the meaning of theoret...

Q: Set 111 o CHe CH2 CH2 H- C-H 12a Incroasing bond angle ースーエ ー土

A: Bond angle is the angle between the bonds of given species.  For comparing bond angle first determin...

Q: b) You wanted to produce 2-nitrobenzene-1,4-dicarboxylic acid. For that purpose, you started the rea...

A: We can solve this question by considering the directing nature of the substituents it means that in ...

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.