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Q: The freezing points and boiling points of the solution which contains 25.0 g NaCl in 129 mL of water...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: to INCREASING acid strength. HNO2(aq) + HC00"(ag) NO2 (aq) + HCOOH(aq) HN3(aq) + Bro¯(aq) = N3 (aq) ...

A: We are given the following equations:

Q: Identify the acid, base, conjugate acid and conjugate base in the following reactions: HF (aq) + H2O...

A: Note: As per our guidelines, we are supposed to answer only the first question (question number 1). ...

Q: OH 1. ? OMe 2. ? a. 1. MsCI, pyridine; 2. NaOCH3, CH3OH b. 1. HCI, pyridine; 2. NaOCH3, CH3OH c. 1. ...

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Q: 10. Find the temperature of a gas if it has 6. 023x1023 particles, a pressure of 500pa, and a volume...

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Q: (i) Calculate the mass of NaHCO3 (84.007 g mol ') must be added to 4.00 g of K2CO3 (138.206 g mol1) ...

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Q: Which of the following nuclear reactions is INCORRECTLY categorized? Select one: O a. H + H → He + ¿...

A: Option ( C) is incorrectly categorized. 

Q: The Henry’s law constant for the solubility of radon in water at 300C is 9.57 x 10-6 M/mm Hg. Radon ...

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Q: Humans have three types of cone cells in their eyes, which are responsible for color vision. Each ty...

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Q: Determine the enthalpy of reaction for the transformation below using the given bond enthalpies. Mak...

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Q: Benzene (i), toluene (ii), acetonitrile(iii), and methane(iv) are among the chemical wastes discover...

A: There are various symptoms of exposure for benzene, toluene acetonitrile and methane chemical waste:...

Q: Calculate the saturation concentration of oxygen (O,) and carbon dioxide (CO,) in a freshwater lake ...

A: Total pressure due to air is 1 atm or 101325 Pa According to Dalton's law of partial pressure, the p...

Q: H2 + Cl2 à HCl     for which the equilibrium constant K = 320 at 150 C. Suppose 0.400 mol of H2 an...

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Q: Draw Lewis structures for the nine isomers having molecular formula C3H,0, with all atoms having for...

A: Lewis structure is the representation of the valency shell electrons and chemical bonds on a skeleta...

Q: Based on the results of the solubility tests and chemical tests, what is the most probable structure...

A: Solubility of C4H8 is  diethyl ether and insolubility in water indicates an hydrocarbon. insolubilit...

Q: Determine the AH of the reaction 1 2NO2(9) +502(g) → N205(s)

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Q: Consider the following:  48Ar; 98Rh; 190Os; 243Am Will all four undergo radioactive decay?

A: Stable nuclei which have atomic numbers up to about 20, have an n/p ratio of about 1:1 . Nuclei whic...

Q: What is the molarity of a NaOH solution if 32.47 mL is required to titrate 0.6013 g of potassium hud...

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Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is create...

A: Given, Mass percentage of acid, HEI = 20.09%  Atomic Mass: H: 1.00784 g/mol O: 15.999 g/mol El: 142....

Q: Which of the following statements is/are TRUE? I. There are 2 conjugate acid-base pairs in a Brønste...

A: Bronsted base are proton accepter or H+ ion accepter. Bronsted  acid are proton doneH3PoH3POr or H+ ...

Q: What is the activation energy (in kJ/mol) for a reaction if increasing the temperature from 150. °C ...

A: Correct option is -76.9 kJ/mol

Q: Q1: Clarify the differences between the cationic and anionic polymerization in propagation step-

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Q: Which complex is MOST stable? O [Rh(CN)3(CO)3] O [Rh(OMe)2(acac)2]¯ O [Rh(acac)3] O [Rh(Me)3(CO)3]

A: Organometallic compounds in which metal is bonded to carbon atom.

Q: How many grams of NaCl are required to precipitate most of the Ag* ions from 5.50 x102 mL of 0.0487 ...

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Q: Draw the molecular energy diagram of 2,3-dimethyl butadiene.

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Q: 17) A weak base, B, has a concentration of 0.155 M. If the pH of the solution is 11.24, what is the ...

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Q: What is the mass of a golf ball traveling at 74.6 m s-1? The rest mass of a golf ball is 45.9 g, as ...

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Q: A sample of carbon dioxide occupies a volume of 3.5 liters at 125 kPa pressure. What pressure would ...

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Q: Which is true? a. MgO has higher vapor pressure than CH3CH2OH at 25 degrees celsius b. HCl is more...

A: General properties of matter:

Q: Name the compound Co(NO3)2. A) Cobalt (I) nitride Cobalt (II) nitrate C) Cobalt nitrite Cobalt (I) n...

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Q: What is the pKa of a weak acid with a Ka of 4.7 X 10-6?

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Q: A student started with these INITIAL concentrations of A and B   and C for this reaction A + B C, ...

A: A+B→C This means 1 mole of A reacts with 1 mole of B to form 1 mole of C. Or in other words the amou...

Q: Considering the phase diagram of CO2 below. Which of the following processes will CO2 remain in gas ...

A: The phase diagram of CO2 shows all three phases (solid, liquid, gas) of CO2 at different pressure an...

Q: For each of the following indicate the direction of the shift 1. 25O3 (g) + 100 kJ – 2502 (g) + O2 (...

A: The principle states that changes in temperature, pressure, volume or concentration of a system will...

Q: 2) Identify the conjugate base and conjugate acid of each of the following. Conjugate Base Atom/ion ...

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Q: Citric acid is responsible for the tartness of citrus fruits, especially lemons and limes. [3] [1]. ...

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Q: What is the coefficient of KCIO3 when the equation below is balanced using the smallest possible who...

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

Q: H2 + 12 > HI for which the equilibrium constant K = 580 at 150 C. Suppose 0.300 mol of H2 (g) and 0....

A: Given: The reaction is as follows:                       H2 + I2 -------------------> 2HI. The eq...

Q: 18) HCN has a K of 4.9 X 10". What is the pH of a solution which contains 0.350 M NaCN? CN (aq) + H,...

A: Given: The Ka of HCN = 4.9×10-10 We have to calculate the pH of a 0.350 M solution of NaCN.  

Q: How much gram of potassium dichromate [K,Cr20, molar mass = 294.2 g/mol] required to make 765 mL of ...

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Q: Calculate the mass equivalent in grams of 15.0 kJ of energy. i 3,58 x 10 3

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Q: A 0.396 molal glucose solution has density of 1.16 g/mL. What is the molarity of glucose in this sol...

A: Molality of glucose, m = 0.396 molal Density of glucose, d = 1.16 g/mL Molarity of glucose, M = ?   ...

Q: A line in the Balmer series occurs at 434 nm. What is n high for this transition ? А) 5 в) 6 C) 3 4

A: Given We know that the balmer series start n=2 wavelength is 434nm  

Q: In which solvent will lauric acid (CH3(CH2)10COOH), the primary component of coconut oil, dissolve t...

A: Lauric acid is one of the members of carboxylic acids. It is one of the primary components of coconu...

Q: A mixture of gases is composed of 15.95 g N2, 38.00 g Kr, and 16.01 g of Ne. The mixture is held in ...

A: Given that : The mass of N2 = 15.95 g The mass of Kr = 38.00 g The mass of Ne = 16.01 g The volume o...

Q: How many neutrons are emitted when a uranium-238 nucleus (Z = 92) is bombarded with a deuteron (21H1...

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Q: Answer the questions below about the highlighted atom in this Lewis structure: H Н — С — С—С — Н H I...

A: Answer:

Q: How much gram of potassium dichromate [K2Cr20, molar mass 294.2 g/mol] required to make 665 mL of 0....

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Q: An airship has an internal volume of 450,000 m3. How many grams of hydrogen gas can be contained in ...

A: Given :-  Volume of gas = 450000 m3  Pressure = 0.90 atm  Temperature = 30.0°C  To calculate :-  Amo...

Q: A gas id heated from 265.0K to 300.0 K and the voulme is increased from 25.0 liters to 36.0 liters b...

A: Given that : Initial temperature = 265.0 K Final temperature = 300.0 K Initial volume = 25.0 liters ...