(Q55) Nickel carbonate is being precipitated out of a 1.00 L solution. If the concentration of dissolved nickel is 0.111, what mass (in micrograms) of sodium carbonate (Na2CO3) must be added for precipitation to begin? The Ksp of nickel carbonate is 1.42 x 107. 1 gram = 1 x 106 micrograms (µg)

Q: The ?sp of cadmium carbonate, CdCO3, is 1.0×10^−12 Calculate the molar solubility, ?, of this…

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Q: Fill in ALL the missing parts to the organic transformations in this sequence LOH C=CCH3 OH CH3…

A: The reaction given is,

Q: balanced equation for the neutralization

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Q: Cr207 2- (aq) + NO2 - (aq) → Cr 3+ (aq) + NO3 - (aq) The unbalanced equation for an…

A: Detail description is given below

Q: Consider the reaction: 2NO(g) + O2(g)= 2NO2(g) AG° = -70.6 kJ Calculate the equilibrium constant of…

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Q: | Verizon 4:05 PM O 75% Question 2 of 7 Submit Which of the following is the correct expression for…

A: Solubility product constant (Kₛₚ) is an equilibrium constant that reflects the capacity to which an…

Q: 28 Consider the reaction scheme and give the structures of A. B, C and D. HOCH,CH,OH Mg, dry ether…

A: We have to complete the reaction. 28.

Q: How much energy would need to be added to 930.g of ice at 0.0°C to turn it into liquid water at…

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Q: The concentration of CaF2 in an aqueous solution is measured to be 0.056 M. Calculate the…

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Q: A sample of enzyme involved in alcohol metabolism, extracted and purified extensively from yeast…

A: Given:

Q: Consider the hypothetical reaction: AB A +B At 501 K, the rate constant is 4.21 x 10-3 M-1s. If the…

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Q: Consider the expression. 7.90 × 10–5 x(0.100 + x)? You can solve for x using a technique called…

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Q: ?sp of this salt

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Q: How many grams of lithium formate (LiCHO2) need to be dissolved in 184 mL of a 0.664 M formic acid…

A: Given: Concentration of HCHO2 i.e. the weak acid = 0.664 M Volume of solution = 184 mL = 0.184 L…

Q: At equilibrium, the concentrations in this system were found to be [N,] = [O,] = 0.100 M and [NO] =…

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Q: How many grams would 71,934,010,495 atoms of a substance weigh if it has a molar mass of 23.7889…

A: Number of atoms = 71,934,010,495 atoms  6.02×1023 atoms = 1 mol 71,934,010,495 atoms =…

Q: Cu*(aq) + 2 NH, (aq) → Cu(NH,); (aq) K = 6.3 x 1010 Calculate the solubility (in g-L-!) of CuBr(s)…

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Q: For both parts, predict the product and give a complete mechanism for the following transformation.…

A: For the given organic reactions, we can expect ester and acid amide as major products resulted from…

Q: A 1.15 g sample of Cac12*2H20/K2C204*H20 salt mixture was added to 150 ml, of water. The precipitate…

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Q: The air in an inflated balloon (the system) absorbs 115 J of heat. As it expands, it does 88 kJ of…

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Q: 15. Given the following equations and H° values, determine the heat of reaction (kJ) at 298 K for…

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Q: Which solution is most likely to result in a solution with a neutral pH? O a. Zn(NO3)2(aq) O b.…

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

Q: Step 3: Each successive approximation uses the value from the previous approximation. 7.90 x 10-5 =…

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Q: what is the % m/v of 371 grams of glucose dissolved in 0.5000L of disolved solution

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Q: Nicotine is a diprotic acid with Ka= 1.0 x 10-6 and Ka2= 1.3 x 10-13 Calculate the pH of a 0.020 M…

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Q: 17.2 g of Na3PO4 is dissolved in 2.10 L of water. What is the number of ions per mL in the solution?

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Q: Use the information provided to determine ΔH°rxn for the following reaction:   ΔH°f (kJ/mol)…

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Q: Which of the following is classified as an ionic compound? O CFA O CaCO, O CH,OH O NO2 O all of…

A: ionic compound is formed by complete transfer of electrons from one atom to other atom/group  so,…

Q: S(s) + 0,(g) = SO,(g) How will adding more S(s) shift the equilibrium? no effect to the right to the…

A: The effect of different physical properties on an equilibrium reaction can be explained on the basis…

Q: e) 2 OC,H, NaOft -Ch-CH-CHCH,C OGHS C, H,OH Hce CH3 + U, excess l, + NaoH CH, COOH

A: We have to give the major products. The required products are shown below   N.B.: Here in presence…

Q: is a method wherein nitrogen from the air is directly combined with H2 under high pressure and…

A: Reactive nitrogen is used for the nitrogen compounds that support growth. So, ammonia is a reactive…

Q: e electron-domain geometries for the the words in the left column to the

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Q: The pyrite (iron sulfide) roasting process is carried out following the next reaction [FeS2 (s) +…

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Q: An enclosed sample of ideal gas undergoes an isochoric process at 6.24m. Its initial temperature is…

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Q: Write down structures of dipeptides produced upon condensation reaction between amino acids below.…

A: When dipeptide is given then number of peptide bond is 1... When tripeptide is given then number of…

Q: 9. What mass of natural gas (CH4) must burn to emit 3,447 kJ of heat? CH4 (g) + 202 (g) → CO2 (g) +…

A: The mass of CH4 can be calculated as follows

Q: Predict whether Tolualdehyde  will test positive for a) Tollens’ test,  b) Benedict’s test. Pls…

A: As the given compound contains as aldehyde as major functionality, it is quite susceptible to…

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

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Q: The half-life of any first order reaction: (select all that applies) Group of answer choices is the…

A: The half - life of any first order reaction :

Q: How much (in atomic mass units, amu) would 78 atoms of an element with atomic mass 107.18 weigh?…

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Q: (Q56) Consider yttrium iodate, yttrium fluoride, lanthanum iodate, and gallium (III) hydroxide:…

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Q: How many atoms would be present in a 894.22 amu sample of an element that weighs 11.28 amu per atom?…

A: Here we are required to find the number of atoms present in 894.22 amu of sample

Q: The atmosphere in a workplace contains 300 ppm of acetone (TLV 1000 ppm),125 ppm of ethyl acetate…

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Q: Determine the equilibrium constant (Kc) at 25°C for the reaction: 2Fe3+(aq) + Cd(s) ⇌ 2Fe2+(aq) +…

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Q: Balance the following equation by filling in the proper coefficients in each box below. use numbers…

A: Given, the unbalanced equation: TiBr4(g) + H2(g) → Ti(s) + HBr(g) We have to balance this equation.…

Q: What is the boiling point of a solution prepared by dissolving 124g of octasulfur (Sg. Molar mass =…

A: Weight of octasulfur=124g Molar mass=256.5 g/mol  Weight of CCl4=955g= 0.955 Kg Kb=5.05°C/m  Boiling…

Q: Given that an unknown atom has (4,2,-2,-1/2) set of quantum number and a neutron count of 97.…

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Q: solute in the mixture. 13. Osmotic pressure is a useful way to determine the molecular weight of…

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Q: in which the system will shift in esponse to the following stresses. FO(g) + 3H2(g) - CH4(g) +…

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Q: A Cr(s) | Cr(aq)|| Fe*(aq) | Fe(s) galvanic cell has a standard cell potential of 0.700 V. Calculate…

A: We have find out the ∆G and maximum amount of work done by the cell on the surrounding.

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.