34. An exterior wall of a building is 4.0 m × 8.0 m. A can of paint can provide coverage for 400 square feet. Is there enough paint for one coat?

Q: How many dots are shown in a dot diagram for the noble gases (except He)? A: 2 B: 8 C: 10 D: 18…

A: Noble gas have 8 valence electrons in its valence shell except He which have only two valence…

Q: A chemistry student weighs out 0.170 g of citric acid (H₂CH₂O₂), a triprotic acid, into a 250. mL…

A: Weight of H3C6H5O7 = 0.170 gm Volume of H3C6H5O7 = 250 ml Molarity of NaOH = 0.1700 M

Q: For this NMR spectrum, why do the hydrogens circled a and b have the same/very similar chemical…

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Q: For the diprotic weak acid H2A, ?a1=3.6×10−6 and ?a2=8.5×10−9. What is the pH of a 0.0800 M…

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Q: For the chemical reaction HCIO (aq) + NaOH(aq) → H₂O(1) + NaClO4 (aq) write the net ionic equation,…

A: Given chemical reaction is, HClO4 (aq) + NaOH(aq) ---------> H2O(l) + NaClO4(aq) To find out net…

Q: Essential oils are concentrated liquid containing metabolites extracted from plant sources and are…

A: #1: Boiling point of organic molecules depends on the type of intermolecular forces present in the…

Q: Complex or Compound Name Metal Metal d Charge electrons Molecular Geometry Obeys 18- electron rule?

A: Coordination chemistry is branch of chemistry in which we deal with coordination compound.…

Q: 2. Draw the mechanism for the following SN2 reaction. Draw the reaction coordinate diagram labeling…

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Q: Given the following data: AH (NH3(g)) = 146.19 kJ/mol at 298 K Cop.m (NH3(g)) (3.114 +3.969x10-³…

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Q: A compound is 40.0% C, 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this…

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Q: Consider the reaction described by the equation C₂H₂Br₂(aq) +31-(aq) - - The rate law is rate =…

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Q: 10) The reaction → 2NO(g) + 02 (g) is second order in NO2 and the rate constant at 630 K is 1.98…

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Q: The rate constant for this first-order reaction is 0.400 s¹ at 400 °C. A-products How long, in…

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Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

A: moles of NaOH = mass / FW = 2.0 g / 40 g/mol = 0.05 moles NaOH

Q: the chemical formula for sodium thiosulfate pentahydrate.

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Q: Why do the hydrogens labeled E have a higher chemical shift than the hydrogens labeled F? Aren't the…

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Q: Rank in order of decreasing acidity the following compounds (1 most acidic...5 least acidic) OH d…

A: After removal of proton, the compound give stable structure, is called more acidic compound. A good…

Q: Sulfur trioxide dissolves in water, producing H2SO4. How much sulfuric acid can be produced from…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: At 1 atm, how much energy is required to heat 87.0 g H₂O(s) at -18.0 °C to H₂O(g) at 135.0 °C?

A: We are asked to calculate energy to convert 87.0g H2O(s) at -18.0°C to H2O(g) at 135.0°C

Q: Write balanced chemical equations for the following.     A solution of sulfuric acid (battery…

A: Write balanced chemical equations for the following.     A solution of sulfuric acid (battery…

Q: counterions. HCI Select to Draw 0:0

A: Explanation : Given reaction is an acid base reaction . In which pentan-1oate ion  act as bronsted…

Q: 18.7 L N₂ at 25 °C and 125 kPa and 40.7 L O₂ at 25 °C and 125 kPa were transferred to a tank with a…

A: Given -> Volume of N2 = 18.7 L Pressure of N2 = pN2= 125 kpa = 125 × 103 pa  Temperature (T1) =…

Q: IR Spectrum Transmittance 70- --02 --09 60- 50- 40- 30- 20- 10- 3500 2993 2948 3000 -2831 2500…

A: It is secondary imine.  Since it have sharp peak at 1656 cm-1

Q: How many atoms of titanium are there in  0.920 mole of each of the following?   ilmenite, FeTiO3

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Q: Can you answer the question and explain it

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Q: 4. For the chalcogen group (N-Bi) give three examples of similarities and three examples of…

A: Phosphorus and Bismuth belongs to group 15 of the periodic table and are positioned in period 3 and…

Q: What is the stereochemical relationship between the following structures? I Н. ZI ""H A. Identical…

A: Given structures:

Q: The chemical reaction that causes iron to corrode in air is given by 4Fe+302 2Fe203 with AHrxn =…

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Q: How many grams of PbBr2 will prec Itate when excess MnBr₂ solution is added to 42.0 mL of 0.556 M…

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Q: 5 A new element, element Jn, is discovered on a separate planet. The energy requires to ionize one…

A: The answer to the following question is-

Q: I I H CH₂ CHỊCHỊCHỊCH H CH₂OH CH3CH2 CH3 CH3 CH3 CH3 CH3

A: Newman Projection :   In this projection, the carbon in front is represented by a point, and the…

Q: IR Spectrum Transmittance 70- --09 60- 50- 40- 30- 20- 10- 3500 2993 2948 3000 -2831 2500 Wavenumber…

A: Groups that are accompanied by change in dipole moment shows IR spectra at specific position…

Q: Complex or Compound Name Metal Metal d Charge electrons Molecular Geometry Obeys 18- electron rule?

A: Here we have to write the name of the given complex, the oxidation state of Ru , number of metal d…

Q: Chemistry Demonstrate using energy plots of E vs. progress of reaction and accompanying brief…

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Q: 10.32 Calculate the [OH] of each aqu following [H3O+]: Hom word s a. oven cleaner, 1.0 X 10-¹2 M b.…

A: We know that -> [H3O+] [ OH-] = 1 × 10-14

Q: 3. Propose a reasonable reaction mechanism for the following transformation. OH Ho for FO H3O+ H₂O

A: This is a rearrangement reaction where acid hydrolysis is taking place and via certain steps we are…

Q: A sample of Na2CO3 is known to contain inert matter and either NaOH or NaHCO3. In the potentiometric…

A: Given data: Concentration of HCl = 0.1 N mass of mixture of compounds = 0.225 g

Q: For boron: a. Write a conversion factor relating moles to number of grams b. Write a conversion…

A: Boron is an element having atomic number 5. It has five protons and five electrons in a neutral…

Q: Mass of solute? Mass of solvent? Molality of the solution? Molar mass of the solute? % error of the…

A: Melting point: The melting point of a substance is the temperature at which it changes state from…

Q: Macmillan Alkali metal Phosphorous Halogen Narogen Magnesium

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Q: Essential oils are concentrated liquid containing metabolites extracted from plant sources and are…

A: The boiling point of the compounds depends on the intermolecular forces. The boiling point increases…

Q: Find the empirical formula for myristic acid. Express your answer as a chemical formula.

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Q: Question 12 Progessive score= 0 mark(s) Draw the organic molecule(s) which is (are) formed in the…

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Q: 1. What is the enthalpy change when 12.8 g Hz (g) reacts with excess (lig) to form HCl (g) H₂ (g) +…

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Q: A student weighs out 1.25 g of an unknown copper compound. Using Mg metal to displace the copper…

A: Weight of unknown copper compond= 1.25 g weight of copper metal obtained = 0.533 g We have to…

Q: 1. For each acid-base reaction, label the acid, the base, the conjugate acid, and the conjugate…

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Q: 3. Describe how you would prepare the following solutions: (List your steps in the right order. Need…

A: Answer: In this question we have to mention the procedure to form the desired solution by…

Q: Consider the complexes, [M(SCN)4] 2−. In which complex would the thiocyanato ligand more likely…

A: This is a problem based on hard soft acid base concept. We shall see the hard hard and soft soft…

Q: Calcium forms a face-centered cubic crystalline structure with a density of 1.55 g/cm3. What is its…

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Q: Consider the two compounds drawn below. Which of the following statement is true? A c) -CF3 B -CF3 A…

A: Solvolysis involves replacement of an atom or a group of atoms in one compund by another.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.