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Q: Which of the following atoms is correctly listed with its number of valence electrons? Li has 3 B ha...

A: Valence electrons are electrons present in outermost shell or energy level of an atom. The number of...

Q: Imagine that phenol (“hydroxybenzene”) and nitrobenzene are reacted (in separate beakers) with a hot...

A: The mixture of concentrated H2SO4 +   concentrated HNO3 is called a nitrating mixture, as it generat...

Q: What is the chmical shift for  13C-NMR signals ?

A: Below is the proton-decoupled13C-NMR spectrum of ethyl acetate, showing the expected four signals, o...

Q: The value of Kb for isoquinoline, C9H7N, is 2.50×10-9.Write the equation for the reaction that goes ...

A: The question is based on the concept of base dissociation constant. We have to write the equation of...

Q: For the combustion of methane(CH4)   CH4 (g)  + 2 O2 (g)  -->  CO2 (g) + 2H2O (g)       Δ H = -88...

A: Balanced chemical equation: CH4 (g)  + 2 O2 (g)  ----->  CO2 (g) + 2H2O (g)       Δ H = -882 kJ/m...

Q: What is the chemical formula for lead (VI) oxide? What is the chemical formula for tin (III) sulfide...

A:

Q: How many yd2 are there in 0.45 ft2 piece of fabric?

A:

Q: Using your cars miles per gallon and the miles you drive in 1 week calculate the liters of carbon di...

A: The amount of carbon dioxide released by the vehicles depend on their fuel consumption and the dista...

Q: Chemistry Question

A: Molar solubility: The number of moles of solute that can be dissolved per litre of solution before t...

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time pa...

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not separ...

Q: Compare and contrast dipole-dipole and hydrogen bonding. Cite at least two similarities and two diff...

A: Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the ne...

Q: a) b) H.

A: Molecular formula represents number of atoms of different types present in a chemical species. It ca...

Q: For the following reaction predict the sign of ΔS and justify your answer with reasoning.  2CO2(g)+4...

A:

Q: Are they the same molecule, not even isomers, Constitutional Isomers, Diastereomers, or  Enantiomers...

A:

Q: Full Screen Accessibility While titrating 50.0 mL of a 0.582 M solution of HCI with a solution label...

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using t...

Q: How many grams of Sucrose solid do I need to make 20ml of 20% Sucrose solution?

A:

Q: Write a balanced chemical equation based on the following description: liquid C-HsO is burned with o...

A: Given, liquid C7H8O is burned with oxygen gas to produce gaseouscarbon dioxide and water vapor.we ar...

Q: I need help with this practice problem? Can steps be explained and shown clearly

A: Sodium dichromateNa2Cr2O7 is a strong oxidizing reagent that is used for the oxidation of secondary ...

Q: Please answer very soon will give rating surely Both questions answers needed

A: A molecular formula is a short term notation of a molecule. In a molecular formula the respective el...

Q: c) To save money, some state Department of Transportation decided to replace relatively expensive ca...

A: Any solute that will dissolve in water lowers the freezing point for a fairly simple reason. When a ...

Q: Consider the following reaction: 2 Al + 3 CuCl2.H2O → 3 Cu + 2 AlCl3 + 6 H2O Assuming 19.59 grams of...

A: Aluminium metal reacts with the copper(II) chloride to form copper metal, aluminium chloride and wat...

Q: Aluminum has a density of 2.70 g/cm^3. How many moles of aluminum are in a 12.2 cm^3 block of the me...

A: All things are provided in handwritten solution 

Q: Suppose when you run through a 50-meter distance you perform 2 Kilojoules of work. If before running...

A:

Q: Please answer very soon will give rating surely Complete Answer needed

A: To give an example of an ion and an isotope. To show the difference between ion and isotope.

Q: Which ionic compound below is composed of ions that are isoelectronic with each other? MgS Rbl Feo C...

A:

Q: What is the [H3O+] of a solution that is pH 4.2? The conjugate base of a reactant in the following e...

A: Solution of question given below.

Q: A student prepared a sugar solution containing 1.062 g sugar (C12H22O11, 342 g/mol) in 24.85 g of wa...

A: The question is based on the concept of solutions. depression in freezing point is a colligative pro...

Q: Organic Chemistry Question  PLEASE SHOW STEP BY STEP, WITH ARROWS! ALSO PLEASE INCLUDE ALL ELECTRON ...

A: The given reaction is, The given long chain compound under goes cyclization on heating. Lone pair o...

Q: Determine whether the following compounds are aromatic, anti-aromatic or neither. neither anti-aroma...

A: Aromatic compounds have extended π electron conjugation. Aromatic compounds obeys Huckel rule.  Acco...

Q: Consider the process of converting liquid water to steam: H20 (I) → H2O (g) What is true for this re...

A:

Q: 1. How many grams of NaCl are required to prepare 100 mL of a solution of 1 M NaCl? 2. Calculate the...

A: Applying formula of molarity M = n/Vin leter

Q: One more: H2 + I2 <----> 2HI. If K=50, what is the equilibrium concentration of HI if the init...

A: Given: Initial concentration of HI = 0.10 M K = 50 The equation used is: Formula for K:    

Q: A mixture of gases contains 4.0 moles of Xe and 8.0 moles of Ar. If the total pressure of the mixtur...

A: Given: Moles of Xe =4.0 mol Moles of Ar = 8.0 mol The total pressure, PT=600 mmHg

Q: Silver acetate ( Ag(CH3COO) ) is a slightly soluble salt in aqueous solutions which ionizes accordin...

A: The equilibrium state of a reversible reaction is influenced by Le Chatelier's Principle which expla...

Q: 4.35 mL of hydrochloric acid was titrated with 2.41 mL of 0.0361 M strontium hydroxide. What is the ...

A: Given, Volume of HCl (V1) = 4.35 mL Volume of Sr(OH)2 (V2) = 2.41 mL Concentration of Sr(OH)2 (M2) =...

Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite min...

A: The question is based on the concept of chemical equations. we have to write the final balanced equa...

Q: Be sure to answer all parts. Calculate the number of cations and anions in each of the following com...

A: Applying concept of moles and calculation of ions.

Q: Draw the major resonance structure for any resonance stabilized carbocations and label major one

A: This question is asking the basic concept of resonance effect. We know that,  Resonance always occur...

Q: Fill in the name and empirical formula of each ionic compound that could be formed from the ions in ...

A: The formation of compounds through respective ions are known as ionic compounds. The particular chem...

Q: Identify the element being reduced in the following reaction:    2 Na  +  Br2  à  2 NaBr   Which of...

A: Applying concept of oxidation- reduction.

Q: Chemistry Question

A: There are total 8 electrons around C and all participate in bonding, hence C has 4 bonding pairs and...

Q: Write a balanced equation from the following cell notation:Fe(s) | Fe2+(aq) || NO3−(aq) | NO(g) | Pt...

A: The answer of following question is given below.

Q: The half‑equivalence point of a titration occurs half way to the equivalence point, where half of th...

A: The question is based on the concept of titrations. we are reacting a weak acid and strong base. We ...

Q: CH3 НО ČH3 describe a biochemical function of the structure shown above

A:

Q: How many moles O2 are required to produce with 0.36 moles of P2O5 What is the stoichiometric coeffic...

A: (1) The balanced Chemical equation between phosphorus and oxygen to give phosphorus pentaoxide - 4P ...

Q: 6. Tarnished silver can be restored by contact with magnesium in a salt solution. In this reaction,...

A: To find the element that is oxidized.

Q: Chemistry Question

A: Given, 6carbon alcohol gives, FeCl3 test -ve Chromic acid test +ve and after that , Iodoform test +v...

Q: The pH of an aqueous solution of 9.43x102 M tellurous acid, H,TeO3 (aq), is For H,TeO3 K =5.40*10 an...

A: Dissociation of tellurous acid is, Ka1 and Ka2 values of a tellurous acid are given as 5.40×10-7 an...

Q: Rank the following compounds in order of increasing heat of combustion:

A: Heat of combustion of a substance is defined as the energy released, when a given amount of it is bu...

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.