lead to a decrease in the entropy of the system? (select all that apply) 1) salt crystals dissolve in water 2) Air escapes from a hole in a balloon

Q: Calculate the bond length of tritium chloride-35 (T3CI). Give your answer in angstrom. (Round your a...

A: this can be determined using the formula B = h/8*3.14*3.14*I*C,ALL TERM HAVE USUAL MEANING 3.14 IS T...

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Q: A volume of 500.0 mL of 0.160 M NAOH is added to 545 ml. of 0.250 M weak acid (K, = 8.52 x 10-5). Wh...

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Q: VISUALIZATION Modes of Radioactive Decay 140 130 120 110 100 90 80 70 60 - Stable - Radioactive 40 3...

A: A question based on nuclear reaction that is to be accomplished.

Q: IBr2 FORMAL CHARGES FORMULA

A: A question based on structure of atom that is to be accomplished.

Q: (a) Suggest the mechanism of the following reactions and comment on your choice of SN1 or SN2. () но...

A: Detail mechanism is shown below

Q: 30. Compare the structures of HNO2 and H2CO3. Which would you expect to be the stronger acid? Explai...

A: HNO3 is very strong acid as compare to H2CO3 because HNO3 completely dissociate in water in order to...

Q: NH4* ag) + NO2 (ag) [NH,*] ---> N2(8) + 2H2O). [NO2] ΕΧPT RATE 0.020 M/s. 0.030 M/s. 0.005 M/s. 1 0....

A: In the rate law, the rate of the reaction is directly proportional to the concentration of the react...

Q: Enter your answer in the provided box. For the reaction N2@) + 3H¿(g)5 2NH3(g) Kp is 0.000648 at 563...

A: Given data:: Kp=0.000648  T=563℃ = (563+273) K = 836 K Kc= ?

Q: Date Sect. Data Report Sheet: Quantitative Analysis of Group III Cations Unknown # 21 Draw the flow ...

A: Group 3 cation involve Cr3+ , Al3+ , Ni2+ and Fe3+.

Q: 2. 30 grams of ethyl alcohol (C2H$OH) is dissolved in 75 grams of water. Calculate the mole fraction...

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.

Q: What do you call the stage of the titration in which the number of moles of the titrant is the same ...

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Q: What are the differences of forward reaction and reverse reaction

A: Below attached file showing the details answer.  All the best .

Q: Equal volumes of solutions of the given concentrations are mixed together. Which of the resulting aq...

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Q: 10. H2 (g) + C¿H4 (g) → C¿H6 (g) 11. 2C,H, (g) + 702 (8) → 4CO2 (g) + 6H2O (g)

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Q: When 2.76 g of cesium perchlorate (CsClo,) is dissolved in 103 g of water in a styrofoam calorimeter...

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Q: 2. In the pH metric titration of strong and weak acid mixture against strong alkali, generally first...

A: We are given a mixture of strong acid(H+) and weak acid(HA).  We titrate the above mixture with a st...

Q: Determine the rate of formation of HBr considering the mechanism of chain reaction, i.e.: Propagatio...

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Q: The Ksp of PbBr, is 6.60 × 10-6. What is the molar solubility of PbBr, in pure water? molar solubili...

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Q: a dry natural gas consists of (60 gm methane, 20gm ethane, 15,gm propane, 8 gm I. Butane, 4 gm N.But...

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Q: Why is Aluminum a commonly materials used in chips?  Based on mass transfer concepts

A: Aluminum is the metal used to create heat sinks for your computer. A heat sink is designed to captur...

Q: Draw the structure of the major product which results when the diene shown is treated with HBr at -8...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: A student set up the reaction with 0.081 M Fe and 1.0x10 M SCN. They end up with an equilibrium conc...

A: Given that, Initial concentration of Fe3+ = 0.081 M  Initial concentration of SCN- = 1.0×10-4 M  Equ...

Q: Identify the compounds that are more soluble in an acidic solution than in a neutral solution. HgI, ...

A: Strong-base-weak-acid salts, such as MgF2 .(soluble in acidic solution) That is because when these s...

Q: 1, The pke value of cacium luoride is 10.41. Colculate the solubilly in g/ at 25 Cin a pure water b ...

A: Given: pKspCaF2 = 10.41 To determine solubility in g/L at 25oC in a) pure water b) 0.0200 M Calcium ...

Q: If a student performed part A of this experiment and recorded a 122% yield, what could have been som...

A: Please find your solution below : Percentage yield is defined as the percent ratio of actual yield t...

Q: Explain the process on how you came up with the answer.

A: Organic compounds can be defined as compounds containing hydrogen and carbon bonds. For example, met...

Q: Question 2. Name the compounds A to D (Figure 2.1). Tip: It is necessary to specify the configuratio...

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Q: The boiling point of hexane at 1 atm is 68.7C. Estimate its vapor pressure at 50C.

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Q: 2S0,2- + I3 [31] Given the reaction: S2O3?- + 3I- ---- Initial Reaction Rate (mol/L.s) 1.4 x 10 -5 E...

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Q: For the rate law Rate = k[A][B]3/2, the order with respect to A is ______, the order with respect to...

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Q: In a CH3COOH/CH3COO" pair, which among these is the base? A) CH3COO- (в) Both С) снзсоон D Neither

A: CH3COOH/CH3COO-  

Q: Balance and add phase labels to the following reaction for the hydrogenphosphate test: HPO2−4 + NH+...

A: Given unbalanced equation HPO42- + NH4+ + MoO42- + H+ → (NH4)3PO4(MoO3)12 (s) + H2O

Q: Enter your answer in the provided box. The equilibrium constant Kp for the reaction is 141 at a cert...

A: Given :  Kp = 141  PNO = 0.597 atm  PNO2 = 0.319 atm   

Q: Three white wine brands, Dugong, Mochi, and Bertha were tested for tartaric acid (FW=150.09) content...

A: The number of equivalents of KHP can be calculated from its provided weight as follows: neq (1)=wFW ...

Q: Hello, good day. I have a problem answering this question, and I need your help. Hoping for a respon...

A: Answer - According to the question - Sedimentation and flotation are solid-liquid separation process...

Q: pH Titration Curve for titrating 29.0 ml of Aqueous Lithium hydroxide with 0.788 mol/L Hydrobromic A...

A: it's a strong base-acid titration

Q: How much of your 6M TE buffer and how much water do you need to prepare 2L of a 81mM TE solution? Ro...

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Q: The decay constant of chemical in water = 0.0295 Half-life of chemical in water = 9.5 days OH radica...

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Q: For the next 3 items: A 100.0-mL sample of spring water was treated to convert iron to Fe2 (55.85 g/...

A: ppm is one of the ways to represent the concentration of solution  here we are required to find the ...

Q: V2 = the desired final volume of working solution How would you make a 100 ul working stock at a con...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: Which of compounds l-V corresponds to the infrared spectrum (attached). Provide a clear rationale fo...

A: Infrared spectroscopy give information about what type of functional group. 

Q: MULTIPLE CHOICE Question 11 Why are POPS so dangerous to organisms? They acidify water, so they can ...

A: POP's are so dangerous for organism because these are persistent, resisting normal processes that br...

Q: Out of the following acids, which are polyprotic? 1. HCl 2. H2CO3 3.HClO3 4.H2SO3 5.H3PO4 6.HN...

A: Polyprotic acids are those which gives more than one H+ ions in water. 

Q: Consider the following reaction at equilibrium Co(g) + H2O(g)=CO2(g) + H2(g) If CO(g) is removed, in...

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Q: 1. Write the synthesis of phenobarbital, give names to the initial and intermediate substances.

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Q: What is the mass of a ball bearing (in grams) with a wavelength of 7.071 x1029 m, and a velocity of ...

A: Given  Wavelength (λ) = 7.071×10-29 m Velocity (v) = 0.100 m/s Mass (m)= ? From , λ= h/mv Here,  h =...

Q: Buffer solution is made by taking 0.404 moles of acid (Pka=5.83) & 0.468 moles of sodium acetate and...

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Q: A 1.00 g sample of NaOH which has been exposed to the air  for  some time is dissolve in water and w...

A: