) If a gas absorbs 2.0 J of heat from the surroundings and then performs 15.2 J of work, what is the change in internal energy of the gas?

Q: A student was titrating a solution of HC,H,O, with a Sr(OH)2 solution. Determine the pH at a…

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Q: -3 Calculate the pH of a 3.6 x 10-M solution of H2SO4 (Ka, = 1.2 x 10-2). pH =

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Q: A solution with a known concentration equal to 3.4 mM gave an absorbance reading of 0.820 in a…

A: Given the absorbance corresponding to 3.4 mM concentration = 0.820  So C1 = 3.4 mM and A1 = 0.820

Q: product(s) forms at the cathode

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Q: Hydrogen can be prepared by suitable electrolysis of aqueous rubidium (Rb) salts   A. True   B.…

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Q: How much CO2 can be derived from 500 g of lactose?

A: Given-> Weight of lactose = 500 gm

Q: t1/2 =

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Q: Which of the is the correct B external negative decay of lead- 212

A: The answer is given below

Q: Li, pentane, Cul F CH,CH,Br, ether e.

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Q: Use the References to access important values if needed for this question. Enter electrons as e".…

A: The balanced net ionic equation for the reaction is given below

Q: Using Table 15.2, the amount of water required to saturate 1 kilogram of air at -5°C is about O…

A: The answer is given below

Q: coulombs are required

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Q: Two kinetics trials are performed at the same temperature with [S2O82-] held constant. The first…

A: Given: The concentration of S2O82- is kept constant. The concentration of I- is quadrupled reducing…

Q: Calculate the elecytomotive force (in volts) registered by an electrode immersed in a solution…

A: Given that

Q: 24. Challenge Photosynthesis reactions in green plants use carbon dioxide and water to produce…

A: Given, Photosynthesis reaction in green plants use carbon dioxide and water to produce glucose and…

Q: 3. Predict the products of the following synthesis or decomposition reaction. Provide the balanced…

A: there are different type of chemical reactions here we are required to write the balanced equation…

Q: value of the equilibrium constant,

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Q: Consider the 5 reactions shown below. 1. H2Og) + CH3Brg) → CH3OH(g) + HBrg) 2. 2 H2(g) + O2(g) → 2…

A: The reactions given are,

Q: Consider the following half-reactions: Half-reaction E° (V) Br2(1) + 2e¯ – 2B1¯(aq) 1.080V Sn2+(aq)…

A: The electrochemical properties are given below

Q: A 25.0-mt sample of an unknown H2CO3 solution requires 45.3 mL of 0.101 M NaOH for complete…

A: Given :  Volume of H2CO3 solution = 25.0 ml  Volume of NaOH solution = 45.3 ml  Molar concentration…

Q: product forms at the anode

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Q: Would you expect lipids to be soluble or insoluble in each of the following solvents? Indicate…

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

Q: there may be several correct answers The formation of an azo dye is possible for drugs: A. Chinozol…

A: Correct option is B.

Q: he heat of reaction f

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Q: You dilute 200. mL of 1.00 M HF to a final concentration of 0.200 M. What is the final volume of the…

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Q: If two molecules of a 1-butanol undergo a condensation reaction, the product of the reaction must be…

A: In condensation reaction water is removed from addition of two reactant...

Q: Part D Complete previous part(s) Part E Find the percent dissociation of a 0.130 M solution of a…

A: Given: The concentration of the weak monoprotic acid = 0.130 M The Ka of the acid = 0.15 We have to…

Q: H2O2(l)  →  2 H2O(l) + O2(g)   Δ Hrxn = −196.1 kJ Calculate the heat for the decomposition of 599…

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Q: Acidic forms of barbituric acid derivatives exist in the form: A. Lactone form B. Lactam form C.…

A: Correct option is B.

Q: Calculate the binding energy per nucleon for the 2Fe nucleus. (Atomic masses: iron-56 = 55.9349 amu;…

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Q: Using the data in the table, determine the rate constant of the Trial [A] (M) [B] (M) | Rate (M/s)…

A: Given reaction: A + 2B → C + D We have to calculate the value of the rate constant for this reaction…

Q: ball & stick labels cis isomer trans isomer cis-trans isomerism not possible

A: Geometrical isomerism :- It arises due to restricted rotation of groups around C=C double bond  The…

Q: A 101.3 mL sample of 0.090 M HCl is mixed with 41.0 mL of 0.090 M NH3.  What is the resulting pH?…

A: Given that

Q: H2(g) + N2 (g)= NH3 (g)

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

Q: A sample contains 4.70 * 10-4  mol of gold, Au. How many atoms of gold are in the sample?

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Q: Exercise 16.100 Enhanced with Feedback MISSED THIS? Watch KCV 16.9, IWE 16.14: Read Section 16.9.…

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Q: 7. Which of these equations correctly represents the Haber process? a) 3 H2 + N2 → 2 NH3 b) Cu2O + C…

A: Chemical equations for Haber process

Q: Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the…

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Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 5.2 g remain. What is the original…

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Q: Determine the pOH of a 0.00598 M HCIO4 solution. O 11.777 O 6.434 O 2.223 O 3.558 O 7.566

A: Given that, 0.00598 M of HClO4 solution. We have to calculate the pOH of the solution. So, the…

Q: Why does bromine's color disappear when Br2 is added to an alkene sample?

A: Given : We have to tell bromine color disappear when it is added to alkene.

Q: 1) PCI3(1) + Cl2(g) → PC!5(g) Jse equations (2) and (3) to calculate AHrxn of equation (1): 2) P4(8)…

A: When the reaction is sum of two reaction, then the enthalpy of that reaction will be the equal to…

Q: Electrical current is carried by a flow of charged particles, which often occurs through electrons…

A: As per the guideline, since you have asked multiple questions, we have solved the first question for…

Q: How much concentrated solution would it take to prepare 2.95 L of 0.585 M HCl upon dilution with…

A: To find how much concentrated solution would it take to prepare 2.95 L of 0.585 M HCl upon dilution…

Q: 2. In an oxidation-reduction reaction, the substance reduced always a) takes on oxygen atoms. b)…

A: Choose the correct option for reduced process--

Q: Consider the following data for osmium: g 190.23 mol atomic mass electronegativity 2.20 kJ 106.1 mol…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: 2.) If a 50 grams of an ideal monoatomic gas has its volume doubled and the pressure is reduced to…

A: The internal energy of the system is the sum of all types of energy of the system. During the change…

Q: What is the equation for the reaction of Fe(s) and 6MHCl(aq)

A: The answer is given below

Q: te the pH c

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Q: Post Lab Questions: 1. When 305.0 calories of heat are added to 32.5 g of copper (specific heat…

A: Given,  305.0 calories heat added to 32.5 grams of Cu. The temperature change in the Cu is :