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Q: The Ca in a 200.0-mL sample of natural water was determined by precipitating the cation as CaC,O4 af...

A: Mass of empty crucible ( A )= 26.6002 g  Mass of crucible + CaO ( B) = 26.7134 g    Mass of CaO =  B...

Q: A 10.00 ml. sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 ml of 0.2345 M H2X....

A: C) Given that: Volume of Y(OH)2 (V1) = 10.00 mL = 0.01 L Volume of H2X = 14.50 mL (V2) = 0.0145 L Co...

Q: Outline a balanced chemical equation for preparation of 2,2-dimethylpropane from suitable Grignard r...

A: Here we have to write balanced equation for preparation of 2,2-dimethyl propane from 

Q: OTs NaOEt ELOH

A: In this question, NaOEt is smaller stronger base and this base abstract H+ ion from most steric hind...

Q: When 20 mmol Pb(NO3)2 is added to 250 mL of 1.0 M NaX, the [PbX4]²- ion forms. At equilibrium, [Pb2*...

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Q: (a) In the following reaction, HO- РСС A (i) Draw the structure of compound A. (ii) Explain using th...

A: In the above reaction the 2° alcohol is treated with PCC to form ketone.  

Q: Using the carbon-containing starting material(s), propose a synthesis the following retrosynthesis s...

A: We have to learn about some reagent : TiCl3 , K/THF = With the help of this reagent Carbonyl group c...

Q: 3. A certain gas compound is used as a general anesthetic. The gas has a density of 1.50 g/L at 50°C...

A: We have given that The density of gas = d = 1.50 g/L Temperature = T = 50 + 273.15 = 323.15 K Pressu...

Q: What is the bond order of the C - O bonds in the carbonate ion ? |(enter a decimal number)

A:   Bond order is directly proportional to bond strength (bond energy) Bond ordrer is inversely propr...

Q: c. Which molecule would have the higher spring constant and bounce height?

A: The combination of the smallest repeating units termed as the monomer in a specific manner produces ...

Q: A mixture of 5.0 g A, 5.0 g B, and 5.0 g C were separated by recrystallization using ethyl acetate a...

A: Given, mass of A = 5 g, B = 5g and C = 5 g. table :  A : cold = 1.7,hot = 2.5              B: cold =...

Q: Calculate the mass percent of H in B,H9C1.

A: Given, compound is B4H9Cl Mass % of H in B4H9Cl = ? Note:  Molar mass of B4H9Cl = (4×10.811 + 9×1.00...

Q: D.1) In the space below, write the unabbreviated electron configurations of the following elements: ...

A: Abbreviated electronic configuration starts by using noble gas configuration for beginning electrons...

Q: What is the value of gas constant? Select one: a. 7.987 b. 0.09781 c. 0.08205 d. 4.5678

A: To solve this problem we have to calculate the value of gas constant .

Q: 4 Draw the complete, detailed mechanism (including curved arrows) for each of the following reaction...

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Q: Determine the amount of heat (in kJ) given off when 2.56 g of NO2 is produced according to the follo...

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Q: Be sure to answer all parts.   Find the pH of the equivalence point and the volume (mL) of 0.0521 M ...

A: Given that : The molarity of KOH = 0.0521 M The volume of HNO2 = 23.4 mL The molarity of HNO2 = 0.03...

Q: Consider a 200.0 mL solution that is 0.00155 M in HCl and 0.0200 M in HCIO2 wwww a) Calculate the pH...

A: The reaction can be represented as: HClO2(aq)+H2O(l)↔H3O+(aq)+ClO2-(aq)

Q: Question 5.29 Assign R or S configuration to the chirality centers in the molecule below. ball & sti...

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Q: HO + BHA 4 4 CH,CH2OH NO2 © Courtesy of Yi Pang 1ot 12 2 clec BA + 3 Sn + 14 H* + 3 Sn+4 +4 H20 NH g...

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Q: A scientist measures the standard enthalpy change for the following reaction to be -1122.2 kJ : 2H,S...

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Q: The decomposition of hydrogen iodide on a gold surface at 150 °C HI(g)% H,(g) + % »(9) is zero order...

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Q: 10. The following structures have incorrect names. Give the correct names. a. 2-methyl-3-propanal b....

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Q: 1. Which of the following metal hydrides should be the most acidic? Clearly explain your reasoning. ...

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Q: Br CH,0° + CH3 B A CH3 CH3 OCH3 CH2 CH3

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Q: Write the full IUPAC name of the compound: Br The parent chain is: The locant of the bromo substitue...

A: The iupac name of the compound is  4-Bromo,2-ethylpent-1-ene The parent chain is 5 membered carbon c...

Q: True or false.  The molar mass of a nonpolar molecule is mainly used when evaluating the strength o...

A: IMFA is inter Molecular Force of Attraction, it is different type of bonds or forces which holds two...

Q: ,CH3 CH2 Isomerizahon HBr Pd Br H3C H3 C 2 - butene 1- bromo butene 1- bulene No HC E CH Cr. 0, / H,...

A: Since you have asked a question with multiple steps, we will solve first three steps for you!. For r...

Q: The molecular formula and molar mass of two straight- chain hydrocarbons are listed in the table abo...

A: As the number of carbon atoms increases or lenth of carbon-carbon chain increases,  the boiling poin...

Q: For the following unbalanced chemical equation, suppose that exactly 2.00 g of each reactant is take...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: A Ba(OH)2 (a9) CH3COOH (ag) + В How many chemical species will be present in the net ionic equation?...

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Q: When the following solutions are mixed together, what precipitate (if any) will form? Note: Leave th...

A: Double replacement precipitation reaction:

Q: Draw the products as stated in the instructions and select all the characteristics that apply to the...

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Q: f potassium phospha ith or(II

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Q: According to his prelaboratory theoretical yield calculations, a student's experiment should have pr...

A: Percentage yield  is calculated  using basic mathematics  as follows. 

Q: The standard reduction potentials for Mg2+/Mg (E'= -2.37 V) and Fe2*/Fe (E'= -0.44 V). When a piece ...

A: Concept- By the help of nernst equation, this problem can be solved. Ecell=Eocell− 0.0592/n log10Q E...

Q: Air contains nitrogen, oxygen, carbon dioxide, and small amounts of other gases. What is the partial...

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Q: Determine the volume of occupied by 2.34 grams of carbon dioxide gas at STP. Select one: a. 3.20 b....

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Q: A. The buret was not conditioned (it still had water in it) when you add the HCl. Would the Ksp be t...

A: We have to compare situation affects the calculation of Ksp

Q: The names and chemical formulae of some chemical compounds are written in the first two columns of t...

A: The ionic compound  are those compocompound which have strong electrostatic force of attraction betw...

Q: The names given for the following unsaturated hydrocarbons are incorrect based on IUPAC nomenclature...

A: 1. 1,6-diethylhept-5-en-1,3-diyne: According to this name the structure of the compound is as follow...

Q: Study this chemical reaction: 2 AGNO3(aq)+Cu(s) - 2 Ag(s)+Cu (NO3),(aq) Then, write balanced half-re...

A: Oxidation refers to the loss of electrons and reduction refers to the gain of electron in the above ...

Q: 5. For those mixtures that result in precipitate formation, identify the precipitate. For those mixt...

A: A precipitate is formed in a double displacement reaction, when any one of the product is sparingly ...

Q: Give the structure of the monomer used to produce the polymer.   - Nylon - Polystyrene - Polyest...

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Q: solution that contains 0.978 g of H3PO4 in 185 mL of solution? How many mL of this solution could be...

A: Mass of H3PO4 = 0.978 g  Molar mass of H3PO4 = 98 g/mol Moles = Mass/Molar mass    = 0.978/98   = 0....

Q: In a study of the gas phase decomposition of dimethyl ether at 500 °C CH3OCH3(gCH,(g) + H2(g) + CO(g...

A: As ln(concentration) vs time graph show straight line graph and unit of slope shows that the reactio...

Q: What mechanism will give the main product of the reaction a)SN1   b)SN2   c)E1   d)E2

A: We have given the reaction of 1-chloro-2-methylpropane with NaNH2  The mechanism which will give mai...

Q: 1. What are the possible sets of quantum numbers that can describe a 2p electron in an atom?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: 26. An ideal gas occupies volume V at a temperature of 100°C. Up to how much will the volume of this...

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Q: The decomposition of hydrogen peroxide in dilute sodium hydroxide at 20 °C H,O,(aq) → H,0M + ½ O2(g)...

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.