How many grams of calcium iodate hexahydrate can be produced from 5.389g of sodium iodate and 1.500g of calcium chloride dihydrate. 2NaIO3(aq) + CaC12*2H₂O(aq) + 4H₂O(1)→ 2NaCl (aq) + Ca(IO3)2-6 H₂O(s) 5.081g 10.16g 6.781g 13.56g

Q: A chemist adds 130.0 mL of a 9.85M silver perchlorate (AgClo,) solution to a reaction flask.…

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Q: To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1900M…

A: Given: Mass of sample = 22.0 g Mass of Ni(OH)2 = 295 mg known: Molar mass of Ni = 58.69 g/mol Molar…

Q: What is the molarity of a potassium triiodide solution, Kl3(aq), if 30.00 mL of the solution is…

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Q: Potassium metal reacts with water according to the following balanced equation. 2 K(s) + 2 H₂O(1) →→…

A: The objective of the question is to understand the stoichiometry of the given chemical reaction and…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The problem based on stoichiometry and ideal gas equation.

Q: How many grams of sodium hydroxide, NaOH, are needed to neutralize 46.33 mL of a 8.50M sulfuric…

A: We have Molarity of of sulphuric acid as 8.5 M , volume used as 46.33 mL. We also know the balanced…

Q: 0.498-g sample of sodium carbonate required   22.6 mLmL   mL of a sulfuric acid solution to reach…

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Q: One hazard of mixing household cleaning chemicals is that unwanted reactions can occur to form…

A: Given :-  Molarity of NaOCl = 0.90 M = 0.90 mol/L   Volume of NaOCl = 100. mL = 0.100 L  Total…

Q: Consider the reaction 3CaCl,(aq) + 2N23PO4(aq) --> Caz(PO4)2(s) + 6 NaCl(aq) (molar mass of calcium…

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Q: The following is a balanced reaction: 2 AgNO3 (aq) + MgCl2(aq)  --> 2 AgCl (s) + Mg(NO3)2(aq) If…

A: The given balanced reaction is, 2AgNO3aq+MgCl2aq→2AgCls+MgNO32aq......(1)

Q: One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide…

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Q: Calculate the amount in grams of citric acid that you would need to complete the reaction for the…

A: To calculate the amount in grams of citric acid that we would need to complete the reaction for the…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

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Q: How many moles of precipitate are formed when 25.0 mL of 1.00 M FeCl₃ reacts with 27.0 mL of 1.50 M…

A: The given reaction between FeCl3 and AgNO3 is given as,

Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium…

A: We have to calculate how many atoms of pure Zn are need in the production process to create a pure…

Q: If 55.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: Given balanced chemical reaction is 2 AgNO3(aq) + CaBr2(aq) →2AgBr(s) + Ca(NO3)2(aq)

Q: One method of manufacturing chlorine gas in a laboratory is to react manganese (IV) oxide with…

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Q: The following reaction occurs when combining elemental magnesium with the solution listed below:…

A: Given, Mg(s) + Cu(ClO4)2(aq) ----> Mg(ClO4)2(aq) + Cu(s) Molarity of Cu(ClO4)2 solution = 7.65 M…

Q: If 65.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: The mass of AgNO3 is 65.0 g.The formula weight of AgNO3 is 169.87 g/mol.The mass of CaBr2 is 45.0…

Q: Consider the reaction of 0.153 g of aluminum metal with 50.0 mL of 0.235 M Co(NO₃)₂. 2 Al(s) + 3…

A: The balanced reaction taking place is given as  => 2 Al (s) + 3 CO(NO3)2 (aq) ----------> 2…

Q: Magnesium hydroxide, Mg(OH)2, is the active ingredient in milk of magnesia. It neutralizes excess…

A: We have given a balance chemical equation as follow                               Mg(OH)2(s)  +…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: In this reaction, 1 mole MnO2 react with 4 mole HCl to form 1 mole Cl2. MnO2 react with excess HCl.…

Q: Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid…

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Q: 69.0 g of AgNO₃ (FW 169.87 g/mol) is added to a solution containing 45.0 g of CaBr₂ (FW 199.89…

A: The question is based on the concept of reaction stoichiometry.We need to calculate mass of…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Answer:-This question is answered by using the simple concept of stoichiometry which involves the…

Q: 5. Answer the following question regarding stoichiometry: How many grams of malachite, CuCO,Cu(OH)2…

A: From the given data, mass of NaCO3 = 10.3 g  mass of CuSO4.5H2O = 2.05 g  Also,  molar mass of NaCO3…

Q: A sample of 7.37 g of solid calcium hydroxide is added to 35.0 mL of 0.490 M aqueous hydrochloric…

A: The stoichiometry of the balanced chemical reaction states that one mole of calcium hydroxide reacts…

Q: In the following balanced reaction: Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq) 10.9 g of KI…

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Q: Consider the following balanced equation: 2 H3PO4 (aq) + 3 CaCO3 (aq) → 3 Ca(PO4)2 (aq) + 3 H2O (l)…

A: We have the equation  2 H3PO4 (aq) + 3 CaCO3 (aq) → 3 Ca(PO4)2 (aq) + 3 H2O (l) + 3 CO2 (g) and,…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The balanced reaction taking place is given as, => MnO2 (s) + 4 HCl (aq) ⟶ MnCl2 (aq) + 2 H2O (l)…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

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Q: How many moles of precipitate are formed when 25.0 mL of 1.00 M FeCl₃ reacts with 28.0 mL of 1.50 M…

A: Limiting reagent : The reagent which is present in less amount than the required amount is called…

Q: The balanced chemical equation for the reaction between calcium hydroxide and hydrochloric acid is:…

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Q: If you use 5.6 g of Al (s) and excess sodium hydroxide, how many liters of H2 (g) at 742 mm Hg and…

A: We can determine the number of moles of H2 that is produced, from the given balanced equation.Then…

Q: One method of manufacturing chlorine gas in a laboratory is to react manganese(IV) oxide with…

A: Volume of HCl = 375 mLMolarity of HCl = 3.78 mol/L

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given,Volume of chlorine to be obtained = 215mLTemperature = 250C.Pressure = 765 torr.

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.