Kc

Q: explain why certain areas have more air pollution than others.

A: More than 80% of people living in urban areas that monitor air pollution are exposed to air quality ...

Q: 34 3. A rectangular sheet of zinc (d = 7.13 g/mL) measures 7.15 cm by 8.97 cm by 0.20 cm. What is th...

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Q: What is the hydronium ion concentration of a 0.010 M solution of acetic acid? Ka for acetic acid is ...

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Q: The reaction between nitric oxide (NO) and oxygen to form nitrogen dioxide (NO,) is a key step in ph...

A: Given, 2NO(g) + O2(g) ➝ 2NO2(g) Mass of Nitrogen dioxide (NO2) produced = 1.51 g Mass of Oxygen gas ...

Q: Data of NaOH Trial 1: mass=0.537g Volume =23.6ml Trial 2: mass=0.566g Volume = 26.8ml Trial 3: mass=...

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Q: Direction: Visualize a substance with the following points on the phase diagram: a triple point at 0...

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Q: In the laboratory a student measures the percent ionization of a 0.429 M solution of hydrofluoric ac...

A: Here we have to find the ionization constant of HF if the concentration of HF is 0.429M and percent ...

Q: Direction: Below is a phase diagram. Label the different parts of a phase diagram using the given wo...

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Q: Write the main products for the following reactions:

A: The products of first five questions are answered below

Q: Draw the expanded structural formula of an organic compound with sixteen carbons using the following...

A: Here C1 and C2 has bond order 3 means it has triple bond and C4 form single bond with C5 and C6. Sul...

Q: Calculate the concentration of nitrate ion in a solution of 0.10M barium nitrate solution following ...

A: Given,  Concentration of barium nitrate solution = [Ba(NO3)2] = 0.10 M  Calculate the concentration ...

Q: CH3 2. CHy-CM3 ÇM3 CM2-CH3 cl

A: Given compounds are : 1).  2).  3). Give the IUPAC names of the given compounds = ?     

Q: consider the following reaction with an activation energy of 12.10 kJ/mol and a rate constant of 9.0...

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Q: Carboxylic acids can also act as a nucleophile in substitution reactions (your textbook shows this!)...

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Q: 1. 2. 3.

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Q: The distribution coefficient, KD (C water/C ether), between ether and water for aspirin at room temp...

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Q: How much heat is involved when an 8.50 kg copper is heated from 25 °C to 1000 °C? Specific eat of co...

A: We have to predict the heat involved in raising the temperature.  

Q: Construct a (011) within a unit cell.

A: A lattice plane in a unit cell is those plane whose intersections with the lattice are periodic.

Q: AG =

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Q: enthalpy

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Q: All of the following points are written under the method section in a scientific paper, except: O a....

A: The correct answer about scientific paper is given below

Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are pr...

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane ...

Q: Crystal seeding

A: In this question we have to explain if there is no recrystallization due to the unsaturation of the ...

Q: Indicate the strongest force holding the crystals together in the following substances by putting a ...

A: Since you have asked a question with multiple subparts, we will answer only first three subparts for...

Q: In the presence of excess thiocyanate ion, SCN-, the following  reaction is first order in chromium(...

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Q: How many liters of hydrogen gas at STP could be produced from 45.0 g of sodium according to the equa...

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Q: standard enthalpies c

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Q: Write an equilibrium constant expression, Kc, for the following reactions: (CH3)2CO (l) ⇆ (CH3)2CO ...

A: Active mass of pure liquid component is equal to 1

Q: In this reaction, what is the coefficient for calcium oxide? CaO(s)+CO2(g). CaVO3(s)

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: Use the References to access important valu The pH of an aqueous solution of 0.267 M ammonium bromid...

A: The PH  of NH4Br can be calculated as

Q: a. Calculate the number of moles of HCI(g) that must be added to 1.0 L of 1.1 M NaC,H3O2 to produce ...

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Q: A spot of black ink was placed on a strip of filter paper. The chromatogram was developed using an a...

A: The fastest moving spot has the highest Rf value. here we see C covered a long distance so it has h...

Q: In the laboratory, a general chemistry student measured the pH of a 0.429 M aqueous solution of form...

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Q: Boiling point temperature is directly proportional to the volatility of the chemical substance. O Tr...

A: The boiling point temperature of the chemical substance is:

Q: . Calculate the [H₃O⁺] of lemon juice with [OH⁻]=4.0 x 10⁻¹³ M * b. Calculate the pH of the solution...

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Q: First statement is true. S

A: Given that, two statements Statement 1: The compound in a multi-compartment system can be separated ...

Q: A 2.15 L volume of KOH of an unknown concentration is mixed with 2050 mL of 0.445 M NaOH. The result...

A: If same nature of two solutions are mixed with different concentrations and volumes then the resulta...

Q: Methanol (CH3OH) burns in air according to the equation 2CH;OH + 30, → 2CO, + 4H,O If 229 g of metha...

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Q: Answer these questions a) identify the six functional groups, and draw the structure of each. b) lis...

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Q: The concentration of acetic acid (pKa =4.75) in vinegar is about 1.0 M. With this information, what ...

A: Acetic acid is a weak acid and it does not dissociate completely into ions. The pKa of acetic acid i...

Q: Phosphoric acid is often added to colas to give them the tart flavor people like. Coke Classic has a...

A: Phosphoric acid is a triprotic acid. It undergoes three dissociations as follows: H3PO4 <------&g...

Q: Isomers with the same boiling point and molecular weight but have different boiling points how is th...

A: Given statement is : Isomers with the same boiling point and molecular weight but have different boi...

Q: Consider the volume vs temperature graph below of an unknown 36.00 mL alcoholic moture: Distillation...

A: Volume of alcoholic mixture = 36 mL Volume of distillate collected  = 18 mL Remaining volume in the ...

Q: Activity 1 Atomic radii and ionic radii are found in the IB data booklet. Explain why: (a) the potas...

A: Comparison between radii of atoms or ions. Order of radii  Electronegativity 

Q: 1. Calculate the percent by mass of the solute in each of these aqueous solutions: a. 5-50g NaBr in ...

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Q: Name th

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Q: QUESTION 8 Consider a 0.10M solution of NaCl. On a molecular level, this solution is composed of cat...

A: Given that , Concentration of NaCl= 0.10M NaCl is a strong electrolyte.

Q: What is the solubility constant of SeCl,(salt) if the Chloris ions concentration is [0.001M]? Se*

A: The dissociation of SeCl5 =Se5++5Cl- given concentration of Chloris ion(S) = 0.001M so concentratio...

Q: To determine the instrument detection limit of Pb2+ ions, a student made 10 blank solutions and meas...

A: Given: Standard deviation of the signal = 0.199 Equation of the curve =, y = 3.413x + b From here sl...

Q: The given monosaccharide below is in a fisher projection and it will be converted into Haworth. H- о...

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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.