Chemistry Question

Q: Sodium and chlorine react to form sodium chloride:2 Na(s) + Cl2( g)¡2 NaCl(s)What is the theoretical...

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical...

Q: Two 3.7 kg physical science textbooks on a bookshelf are 0.11 m apart. What is the magnitude of the ...

A: A numerical problem based on gravitational force of attraction, which is to be accomplished.

Q: The formula for the carbonate ion is CO3 -2 predict the formula for carbonic acid

A: Ionic compounds are a combination of positive ions called a cation and negative ions called an anion...

Q: The ultraviolet spectrum can be divided into three regionsbased on wavelength: UV-A (315–400 nm), UV...

A: The ultraviolet spectrum consists of electromagnetic radiation. This spectrum has wavelengths rangin...

Q: An automobile engine provides 576 Joules of work to push the pistons and generates 2340 Joules of he...

A:

Q: What are the key properties of solids (in contrast to liquids andgases)?

A: There are three states of matter in science. They are solid, liquid and gas. All the three has diffe...

Q: How can the corrosion of iron be prevented?

A: Preventing the rusting of iron is a major industry. The most obvious way to prevent rust is to keep ...

Q: A student prepares aspirin using 2.670 grams of salicylic acid (MW = 138 g/mol) and 5.85 mL of aceti...

A: The reaction of salicylic acid with acetic anhydride to give aspirin(acetylsalicylic acid) is as sho...

Q: Draw Lewis structures for these ions and show which atom (or atoms) in each bears the formal charge....

A: The lewis structure of the ions and formal charge of the ion has to be identified.

Q: In brucite (Mg(OH)2), the Mg atoms are in octahedral coordination to hydroxyl groups. Using Pauling’...

A: The electrostatic valency (ESV) rule of Pauling helps in determining the bond strength from the coor...

Q: (a) Determine the oxidation number of lead in each of the following oxides: PbO, PbO2, Pb2O3, Pb3O4....

A: Oxidation number is defined as the number that is assigned to an atom when it loses or gains electro...

Q: A solution A contains 0.02mol/dm3 CH3COOH(aq) and 0.2mol/dm3 CH3COONa(aq)   Calculate the PH of the...

A: pH: pH of solution tells about neutrality of solution. pH is a scale that determine whether given co...

Q: State the Miller indices of the planes that intersect the crystallographic axes at the distances (−a...

A: A set of three numbers which tell about the orientation of the plane are known as miller indices. Th...

Q: Give the structure of the following compound(a)  3-bromo-2-methylpentane

A: While drawing the IUPAC name first identify the parent chain and the functional group.  

Q: Calculate [OH−] for the following solution; [H3O+] = 8.87×10−9 M Is the solution basic at 25°C?

A: pH is negative logarithm of hydronium ion. Given,  [H3O+] = 8.87×10−9 M    

Q: Chemistry Question

A: In water, the sodium carbonate dissociates into two distinct stages.                                ...

Q: Give the name for this molecule: ОН CH3CH2CH2-C- CH2CH3 | CH,CH3

A: The name of the given Molecule will be completely based on IUPAC Nomenclature -

Q: What is the chemical formula for the base Nickel(II) hydroxide? express as a chemical formula.

A: Applying the  formula of determination of chemical formula of compounds by the valancy of elements.

Q: Draw the products of attached reaction carried out under high-dilution conditions. Indicate the ster...

A:  The products of attached reaction carried out under high-dilution conditions and the stereochemistr...

Q: Write an empirical formula for each of the following:(a) Hydrazine, a rocket fuel, molecular formula...

A: The empirical formula is the chemical formula that shows the proportion of elements present in the c...

Q: [References] Suppose you dilute 30.0 mL of a 0.100 M solution of Naz CO3 to exactly 100.0 mL. You th...

A: Stock solution 1 Initial molarity (M1) = 0.100 M Initial volume (V1) = 30.0 ml  

Q: An irregularly shaped metal part made from a particular alloy was galvanized with zinc using a Zn(NO...

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Q: A titration analysis of a 345.0 mL aqueous HBr solution was performed and the endpoint was reached u...

A: Molarity of KOH=2.815 M Volume of KOH=191.05 mL =191.05/1000 =0.19105 L  [1 L = 1000 mL] Volume of H...

Q: Now, what if the reaction were run under neutral conditions (with a little heat added to make sure t...

A: Acyl halide RCO-Cl reacts with alcohol moleculeHO-R' to form ester molecule RCO-R' with the eliminat...

Q: The standard enthalpies of formation of ClO and ClO2 are101 and 102 kJ/mol, respectively., Calculate...

A: The enthalpy change of the overall reaction is equal to the sum of the enthalpies of the given react...

Q: What are valence electrons? Why are they important?

A: Valence electrons are those that are presented in the outermost shell of an atom.  

Q: 3. Consider N02(g) + CO(g) NO(g) + CO2(g) If the activation energy is 125 kJ/mol, and AE for the rea...

A: The given reaction is, Given data: The activation energy is 125kJ/mol. ∆E of the reaction is -246kJ...

Q: Question attached

A: The average kinetic energy of an ideal gas is given by the expression:                            EK...

Q: A liquid typically boils at 200 °C. If an insoluble salt is added to the liquid, its new boiling poi...

A: Boiling point will only be affected if salt is soluble.

Q: Question attached

A: The given data contains, CH4=0.220 MCO2=0.670 MH2O=1.30 M      

Q: Write the structural formula and name of the organic product for the reaction between an alkyne and ...

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Q: Elaina performs the copper cycle lab beginning with 10.00 mL10.00 mL of a 0.710 M Cu(NO3)20.710 M Cu...

A: First of all we calculate the mass of copper (II) Nitrate using Molarity formula. Formula for Molari...

Q: Plot the relative energies of the MOs of benzene ?

A: The hydrocarbon benzene has the chemical formula C6H6 and the molar mass 78.11 g/mol. In this molecu...

Q: To improve conductivity in the electroplating of automo-bile bumpers, a thin coating of copper separ...

A: a) The mass of copper has to be determined, The half-reaction can be written as, Cu2+(aq)+2e-→Cu(s) ...

Q: Complete and balance the following nuclear equations by supplying the missing particle: 1 1H + 11 5B...

A: The total mass number and proton: H11+B511,mass number=11+1=12The number of proton=5+1=6

Q: What are the main classifications of hydrocarbons? What are their generic molecular formulas?

A: Hydrocarbons are the organic compounds consisting of hydrogen and carbon only.

Q: The following bicyclic ketone has two a-carbons and three a-hydrogens. When this molecule is treated...

A: Exchange of alpha-hydrogen occurs through keto-enol tautomerism and an enol intermediate. The key to...

Q: What fraction of the decay energy is this, noting that the decay mode is π0 → ϒ+ϒ (so that all the π...

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Q: How to prepare the Organometallic Reagents ?

A: Organometallic reagents are the compounds having carbon-metal bond like C-Li, C-Mg, C-Cu etc. These ...

Q: How long can a 54-lb child be exposed to 1.0 mCi of radi-ation from 222Rn before accumulating 1.0 mr...

A: Given data contains, Weight of the child is 54 lb. Quantity of radiation absorbed is 1.0 mrad. Radio...

Q: State the number of types of equivalent hydrogens in   compound and the number of hydrogens . Q.) 2-...

A: Proton nuclear magnetic resonance H1-NMR is an analytical method used to determine the type and coun...

Q: Describe the procedure of Lewis structures for polyatomic ions?

A: Lewis structure of a molecule is the representation to show the valence electrons along with the bon...

Q: 5. Consider the following reaction and equilibrium constant at a given temperature: NH4CI(s) + NH3(g...

A: FOr the reaction  NH4Cl(s) ⇌ NH3(g) + HCl(g) Kc = 3.5 x 10-3 The volume of vessel=2.00 L Moles of NH...

Q: why the increasing concentration of only one reactant may not affect the reaction rate?

A: The question is based on the concept of chemical kinetics. it involves the identification of reactio...

Q: Calculate the Normality of Hcl of a solution that contains 45 g in 325 ml of water, knowing that the...

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Q: Give the shorthand structures of poly(vinyl chloride) and nylon 6,6 in Section 30.1.

A: Polyvinyl Chloride is a polymer made up polymerization reaction of Vinyl chloride monomer. The react...

Q: Calculate the formula mass for each of the following compounds. ZnCO3ZnCO3 Express your answer usin...

A: A set of 4 molecules, whose formula masses are to be determined.

Q: Which atom would be expected to have a half-filled 6p subshell?

A: A p-subshell consists three orbitals in which total of three electrons can be filled. So, when six e...

Q: Write balanced nuclear equations for the following:(a) Formation of ²⁴¹₉₅Am through β⁻ decay(b) Fo...

A: Isotopes are those elements which have same atomic number but different mass numbers. There are many...

Q: Benzoic acid (C6H5CO2H) is a weak acid with a dissociation constant. Ka = 6.4 x 10-5 mol/dm3 at 250C...

A: A weak acid is one that does not dissociate completely in solution; this means that a weak acid does...