Ts ČOOET

Q: At a certain temperature, the equilibrium constant K for the following reaction is 5.25 x 10: NO,(g)…

A: Answer: Value of equilibrium constant is always equal to the ratio of molar concentration of…

Q: Determine the molality (m) of the following: b.) 19.4M NaOH (Density = 1.54 g/mL)

A:

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C).1.75 J/(g⋅°C). How much heat…

A: Given data :: Cp of cooking oil = 1.75 J g-1℃-1 q= ? m=2.08 Kg = 2080 g T1=23 ℃  T2= 191℃

Q: A reaction has a standard enthalpy change, AH, of +10.00 kJ/mol at 298 K. The standard entropy…

A: A) Given, Standard enthalpy of charge (∆H) = +10.00 kJ/mol = +10.00 × 1000 J/mol = +10000.00 J/mol…

Q: Each of the insoluble salts below are put into 0.10 M hydrobromic acid solution. Do you expect their…

A: Answer: These questions are based on the concept of simultaneous solubility where due to the…

Q: Which of the following statements is true?   Question 19 options:   A)  When two opposing…

A: -> At equilibrium  Rate of forward reaction = Rate of backward reaction Hence, option (1) is…

Q: Can you label which is carbon 1,2,3 6 and which is oxygen 3 and 4 and say what are the bond angles?…

A: The carbon atom exhibiting sp3 hybridization will show a bond angle of 109°28'. The carbon atom…

Q: How many milligrams of iron are dissolved 100.0 mL of an extract if, after testing with an…

A: "Parts per million" can also represent as mg/l. 1ppm = 1mg/l

Q: A general reaction written as 2A + 2B  → C + 2D is studied and yields the following data.…

A: General representation of reaction rate is :-  Rate = K[A]n[B]m  Where k = rate constant  n and m…

Q: A gas sample with a constant number of gas molecules and at a constant temperature has a volume of…

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Q: Sample Problem 6: A water sample was tested for iron content, but was diluted prior to obtaining the…

A: 100 mL diluted sample has a concentration of 0.891 ppm. We have to calculate the concentration of 10…

Q: The symbol for molarity is ______. The units of molarity are ______.

A: Molarity is defined as the moles of a solute per liters of a solution

Q: CH«g) + O3(g) → CO2(g) + 2H2O(g) AH? (kJ/mol) -249.2 Substance Substance AHf (kJ/mol) H2O1) H2Og)…

A: Calculate change in enthalpy of the given reaction---

Q: Calculate the volume (mL) of NaOH needed to prepare 2.5 mol of 0.100 M solution

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Q: &. Balance the given chemical equations using the inspection method. 1. CsHa + 2OCa +L AICIa 02 CO2…

A: We have to just balance atoms on both side

Q: Complete the Synthesis Pt, | (CH, CH.),CH= CH(CH.), CH, H Hz CH3 CI HCI Zn 2 CH3C CH2 CH CH, CHCH, +…

A: Answer of the question given below,

Q: Which one of the following thermodynamic quantities is not a state function? O a. enthalpy O b. work…

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Q: btA. How many grams of NaCl should you weigh to make 2.00 L of a 6.14 M solution of NaCl? B. What…

A: Given,  The mass ingrams of NaCl should you weigh to make 2.00 L of a 6.14 M solution of NaCl is:

Q: The dissociation constant of ammonia is 1.8 x 10 -5. At 0.120 M solution concentration, (a)find the…

A: Given,  The molarity of ammonia solution is 0.120 M.  The dissociation constant for ammonia is: 1.8…

Q: No electronic device allowed. rite the dissociation reactions for the solution made by adding 0.001…

A: In a dissociation reaction a compound breaks in to two or more components. Salts that are soluble in…

Q: What mass is grams of potassium chloride is produced if 2.4 moles of potassium chlorate decompose…

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Q: A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellant) in 50.0 g of cyclohexane…

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Q: Which of the following characterizes a beta ray? Choose all that apply. is electromagnetic radiation…

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Q: A 10.00-g sample containing an analyte was transferred to a 250-mL volumetric flask and diluted to…

A: As per Lambert Beer's Law- Absorbance = Molar absorptivity coefficient * Path length * Concentration…

Q: 3) Propose a suitable synthesis to accomplish the following transformations. (Please show every step…

A: a.

Q: urce Dose (mremlyear) turally Occurring Radiation emic rays rrestrial radiation (rocks, buildings)…

A: Ans. In an accident, the radiation exposure = 4.23×10-4 Sv   Exposure from terrestrial radiation…

Q: 3. (6)What is the pH of a buffer that is 0.12M lactic acid (HC3H5O3) and 0.1OM sodium lactate? Ka=…

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Q: H2(g) → 2 NH3(g) ΔΗ + 4 H¿O(1) → 2 NO:(g) + 7 H2(g) AH = H2(g) + ½02(g) ΔΗ %3D

A: Using Hess's law, According to this law, Enthalpy of a reaction remains same either it completes in…

Q: If anyone would be able to help explain to me what a fatty acid is and how they are named that would…

A: In question it is asked to answer what is fatty acid and how they are named.

Q: A sample of ethanol (C2H6O) contains 3.024g of Hydrogen. How many moles of carbon atoms are in the…

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Q: Four carbocations are shown, which can possibly rearrange via hydride shift to a more stable…

A: To determine which carbocation would undergo hydride shift to get more stable carbocation , we would…

Q: Fill in the nuclide symbol for the missing particle in the following nuclear equation. +83 214 Bi

A: 82pb214

Q: How much NAOH in kg is required to neutralize 10 L of HCL at 25 wt.% As well, can you explain how to…

A: 10 L HCl has a concentration of 25 wt. %  We have to calculate the mass of NaOH is required to…

Q: The enthalpy of vaporization of methanol (CH30H) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: formuls for this is: entropy change = enthalapy of vapourisation/Boilling temp.

Q: If heat is added to an exothermic reaction, in which direction will the equilibrium shift according…

A: Please find your solution below : According to Le Chatelier's principle, when a system at…

Q: HW-1- Find the Destination Numbers of following Refrigerant chemical formulas No. Refrigerant…

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Q: What is the mass in grams of 4.57 x 1025 molecules of Cl2?

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Q: are these meso compounds, or identical, or both?

A: Given compounds:

Q: final temperature

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Q: ume, where the addition of a esults in a large jump in pH. of the acid solution. added pH. 5.05 5.22…

A: Given,  Molarity of NaOH = 0.1025 M Volume of Acidic solution = 25.00 mL There is sudden jump at…

Q: Devise a synthetic strategy to complete the following transformation.

A: GIVEN:-

Q: 1. (2) Circle the strongest acid. a) HC;H5O2 Ka= 6.3 x 105 b) HCN Ka = 4.9 x 10-10 c) HNO2 pKa =…

A: We know that :-  Ka is acid dissociation constant. More Ka value, strong is the acid. And pKa =…

Q: One mole of CO2 at STP will occupy Group of answer choices 22.4 L 44 g 44 L 1.0 L 24.5 L

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Q: Identify the specific type of chemical reaction shown in the equatior OH 20- HSO CH3 -C ~CH3 CH;…

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Q: When 15.0 mL of a 8.48×10-4 M copper(II) bromide solution is combined with 22.0 mL of a 9.19×10-4 M…

A: Answer: Precipitate only forms when ionic product of the compound becomes great than its solubility…

Q: A sample of nitrogen gas collected at a pressure of 0.927 atm and a temperature of 13.0 °C is found…

A:

Q: A sample of carbon dioxide gas collected at a pressure of 0.745 atm and a temperature of 302 K is…

A: Given,  Pressure(P) = 0.745 atm Temperature(T) = 302 K Volume(V) = 0.631 L Gas constant ,R = 0.0821…

Q: Calculate the pOH of 3.50 M of NaOH O a -14.54 O b. 13.46 O c. 0.54 O d. -0.54

A: Concentration of NaOH = 3.50 M  pOH of the NaOH solution = ?

Q: A 9.00 L tank at 5.93 °C is filled with 7.54 g of boron trifluoride gas and 17.1 g of dinitrogen…

A: Partial pressure = total pressure x mole fractions of the gas. Using this formula , calculate the…

Q: Calculate the pH of 4.0 X10*-4 M KOH O a. 9.40 O b. 3.40 O c. 4.60 Od. O d. 10.60

A:

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.