A sample of methane experiences a temperature change of -92.79 °C while releasing 487.4 joules of heat. The specific heat capacity of methane is 2.191 J/(g.°C). What is the g CH4 mass of this sample?

Q: 4.When the equation below is balanced the coefficient of nitric acid, HNO3 is. Zn + HNO3 - Zn (NO3)2…

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

Q: Kp for the reaction 4CUO(s) = 2Cu20(s) + O2(g) Is 0.49 at 1024 °C. Calculate Kc at this temperature

A: Given :- 4CuO(s) <-----> 2Cu2O(s) + O2(g)  Kp = 0.49  T = 1024°C  To calculate :- value of Kc…

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Q: HO CH HO, HO. Naproxen Acetaminophen Ibuprofen a. How many sp3 hybridized carbons does each molecule…

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A: A polar molecule will have a noticeable difference in electronegativity between its atom and also…

Q: Unbalanced Reaction Equation: Fe2+(aq) + MnO4-(aq) → Fe3+(aq) + Mn2+(aq) Question Content Area MnO4-…

A: Given :-  Fe2+(aq) + MnO4-(aq) → Fe3+(aq) + Mn2+(aq)  MnO4- is reduced here  To find :-  Oxidation…

Q: For the overall chemical reaction shown below, which one of the following statements can be rightly…

A: Rate law :-  The equation which shows the dependence of rate of reaction on concentration of…

Q: In a closed vessel, 6.40 grams of carbon monoxide reacted with 17.35 grams of 02 1. What is the…

A: Given: Mass of CO taken = 6.40 g. And mass of O2 taken = 17.35 g. Molar mass of CO is 28 g/mol and…

Q: Calculate the frequency in Hz of electromagnetic radiation having a wavelength (6.4x10^4) nm. Note:…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of these situations will result if some CH4lg) Is removed from the reaction Colg) + 3H2(g) =…

A: Reaction given:  CO(g) + 3H2(g) ⇌CH4(g) + H2O(g) According to Le-chatelier's principle:  If an…

Q: CH3 N2 ÇH3 CH3 `CH3 HO3S N,N-dimethylaniline methyl orange

A: The reaction given is,

Q: An unknown sample of Librium was analyzed using polarography. A 50 mL sample containing the sample…

A: given that , Wave height was 0.40 uA when it contained 50 ml Librium. Now after adding 5 ml , the…

Q: 4. Br + CIO + H* Br, + Cl¯ + H,0 2+ 4+ 5. Sn + VO, + H → Sn + V²* + H,0 »

A: The answer is as follows:

Q: Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum)…

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Q: +21 + 2HO HOI + OH Slow Fast 1-1- H0 Fast rate law that is consistent with this meche e Choice…

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Q: Study this chemical reaction: Pb+O, - Pbo, Then, write balanced half-reactions describing the…

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Q: "Ih "He + Ra Determine how much energy is released when thorium-230 decays according to - LAtomic…

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Q: Complete and balance the following equation: NO2-(aq)+ Cr2O72-(aq)→ Cr3+(aq)+NO3-(aq)

A: NOTE: In the reactant, it will be NO2- and not NO2- and in the product, it will be NO3- and not…

Q: High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify…

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Q: The Lineweaver-Burke equation of a reaction is 1/v = 0.3 (1/s) + 0.2. Question: What's the Vmax of…

A: Given- 1/v=0.3 (1/s)+0.2 Vmax of the reaction=?

Q: Which of the following aqueous solutions are good buffer systems? O 0.33 M ammonia + 0.39 M sodium…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: Calculate the volume in liters of a 5.00 M HNO3 standard required to obtain 2.00 L of a 2.50 M…

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Q: ght given off by a tungsten filament amma decay uclear fission in nuclear reactors

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Q: At 1275 K, ∆G° = 18.1 kJ/mol for the reaction 3 A (g) + B (g) → 2 C (g). If the partial pressures of…

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Q: Construction of a voltaic cell Consider a iron-silver voltaic cell that is constructed such that one…

A: At anode , oxidation takes place and at cathode reduction takes place.

Q: Which of the following refers to a composition in which its components cannot be separated by…

A: Distillation :- It is a method of separation of mixture of liquids based on their difference in…

Q: Question 26 The addition of 8.00 g of a compound to 300 g of naphthalene lowered the freezing point…

A: Molecular weight of solute = Kf x Weight of solute x 1000 / ∆Tf x weight of solvent.

Q: 3. Why is a molecule defined your explanation.

A: A polar molecule is a molecule containing polar bonds where sum of all bonds dipole moment is not…

Q: 15. A voltaic cell utilizes the following reaction: 4Fe2+(aq)+O2(g)+4H+(aq)→4Fe3+(aq)+2H2O(l) THE…

A: Given that, a voltaic cell reaction is 4Fe2+(aq) + O2(g) + 4H+(aq) →4Fe3+(aq) + 2H2O(l). The…

Q: hot lump of 36.1 g of aluminum at an initial temperature of 51.1 °C is placed in 50.0 mL H2O…

A:

Q: The half-life decreases with time for the reaction aA =>bB , which is:  a)zero order in A b)first…

A: Half life of second order reaction is inversely proportional to initial concentration

Q: A reaction is experimentally found to follow the rate law, Rate = k[Aj? where k = 0.355 M'min1.…

A:

Q: Detemine the mole faction of the solvent in a solution prepared by dissolving: 36g of CH3OH in 1000…

A: NOTE: In question 1, there is some data not given properly. Since you have asked multiple questions,…

Q: 13.76 Chrome is plated from solutions of chromium(III) ions. If a particular application requires…

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Q: Reaction 3: N2 (9) + 202 (g) → 2NO2(g) AH= +66.4 kJ Complete the table for Reaction 3. Assume the…

A: The reaction given is, =>

Q: The equibrium constant for the reaction Nijs) + 4COlgi - NICOMlal is 5.0 - 104 at 25°C. What is the…

A: The equilibrium expression written for a reaction written in the reverse direction is the reciprocal…

Q: Post Lab Questions 1. Are there any deshielding effects seen in your NMR? What is causing this…

A: 1) Yes , there is de-shielding effects can be in the nmr spectra of the given compound. There are…

Q: Sneet(S) 0I paper to get Tun Chapter 6 1. A gas system has an initial volume of 2400mL with the…

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Q: The particular substance whose specific heat capacity is 0.90564 J/(g.°C) at a temperature of…

A: The amount of heat required to increase the 1oC temperature of 1 g of a substance is known as the…

Q: The first disinfectant used by Joseph Lister was called carbolic acid (C6H5OH). At present, this…

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Q: A reaction is experimentally found to follow the rate law, Rate - K(A2 where k - 0.355 Mmin.…

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Q: Write the balanced NET ionic equation for the reaction when aqueous BaCl, and aqueous (NH,),SO̟ are…

A: • Aqueous barium chloride on reaction with aqueous ammonium sulphate gives aqueous ammonium chloride…

Q: Construct the expression for Ka for the weak acid, CH,COOH. CH,COOH(aq) + H,O(1) = H,O*(aq) +…

A: Given data :

Q: When CH3(OH)2 is dissolved in water, how many particles are in the solution?

A: It is Ca(OH)2 Number of particles depends upon nature of electrolytes  Strong electrolytes…

Q: 1.25 moles of NOCI were placed in a 2.50 L reaction chamber at 427°C. After equilibrium was reached,…

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Q: solution was standardized using 0.256 g of sodium carbonate. (Na2CO3 = 106 g/mol; HCl = 36.46 g/mol)…

A: Given,  Mass of Na2CO3 = 0.256 g Na2CO3 = 106 g/mol; HCl = 36.46 g/mol) Moles of Na2CO3 = mass/Molar…

Q: A weak acid has Ka of 4.82 x 10-5.  What is pKa for this weak acid? Enter a numerical value in the…

A: Given: Ka = 4.82 × 10-5

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

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Q: A micropipette was used to draw 450 microliters of solvent X and when measured using an analytical…

A: