Is the dissolution of NaOH endothermic or exothermic

Q: In an experiment mixing Ammonium nitrate and water in calorimeter. Look for the q water, q…

A: Given: Mass of NH4NO3 = 5.00 g Initial temperature of NH4NO3 = 20.0 oC ΔH solution of NH4NO3 = 25.69…

Q: nother group performed the combustion of sucrose. Determine the ΔHcombustion (in kJ/mol) of sucrose…

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Q: CaCl2 (MM = 110.98 g/mol) is used as road salt in the winter to minimize the accumulation of ice on…

A: On adding dissolving CaCl2, the temperature will change from initial value. Heat absorbed by water…

Q: 2.045 g of a new compound with formula C9H8O2 is burned in a bomb calorimeter.  During the…

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Q: d)The ΔH°f of Ar(g) is   1.positive. 2.negative. 3.zero. 4.must be determined experimentally.…

A: The ΔH°f of Ar(g) is 1.positive. 2.negative. 3.zero. 4.must be determined experimentally

Q: A 6.620g sample of C12H24(l) was burned in a bomb caloriemter whose heat capacity had been…

A: Given: Mass of C12H24 is 6.620 g Molar mass is 168.319 g/mol Mass of water is 1250.0 g Initial…

Q: A chemist measures the enthalpy change AH during the following reaction: H,O(1)→H,O(9) AH=44. kJ Use…

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Q: Time Consider the reaction represented by the equation 2X + 22 - X,Z,. During a reaction in which a…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Find ΔH for the reaction    C3H8 (l) + 5O2(g) --> 3CO2(g) + 4H2O(l)        ΔHrxn = ? Given:…

A: Given: Enthalpy of formation of CO2(g)= -393.5 kJ/mol Enthalpy of formation  of H2O(l)= -285.8…

Q: Calculate the ΔH for the reaction: B2H6(g) + 6Cl2(g) → 2BCl3(g) + 6HCl(g) The following are given:…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: When 12.0 g (0.100 mol) of MgSO,(s) is dissolved in water in a constant pressure calorimeter, the…

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Q: Dissolution of Sodium Hydroxide mass of water: 200 g initial temperature of water: 20°C final…

A: Given: ΔH of NaOH dissolution: -44.53 kJ/mol To answer: The change in temperature when NaOH is…

Q: What is ΔSo for the reaction below?                          3 NO2(g)    +    H2O(l)  ---->    2…

A: The entropy of a system is the measure of its thermal energy per unit temperature that is…

Q: Calculate the ΔH for the reaction: Na2O (s) + SO3 (g) -->  Na2SO4 (g) ΔH

A: Target equation :- Na2O (s) + SO3 (g) -->  Na2SO4 (g)…

Q: Dissolution of Ammonium Nitrate mass of water: 200 g initial temperature of water: 20°C final…

A: An Exothermic Process is one in which heat is released during the process. An Endothermic Process is…

Q: Calculate ΔH per the reaction NO(g) + O(g)-> NO2(g) Data: NO(g) + O(g)-> NO(g) + O2(g)      ΔH=…

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Q: Calculate the ΔH for the reaction: C2H4 (g) + H2 (g) --> C2H6 (g), from the following data:   C2H4…

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Q: CaCl2 (MM = 110.98 g/mol) is used as road salt in the winter to minimize the accumulation of ice on…

A: On adding dissolving CaCl2, the temperature will change from initial value. Heat absorbed by water…

Q: Calculate Δ?ΔH for the reaction B2H6 (g) +  6 Cl2 (g) ⟶⟶ 2 BCl3 (g) + 6 HCl (g) from the following…

A: We have to Calculate Δ?ΔH for the reaction B2H6 (g) +  6 Cl2 (g) ⟶⟶ 2 BCl3 (g) + 6 HCl (g) from the…

Q: Above what temperature (in Kelvin) does the following reaction become nonspontaneous?   FeO(s) +…

A: if ΔH and ΔS are both negative , so spontaneous at low temperature , non spontaneous at high temp.…

Q: The decomposition of calcium carbonate is given by the reaction, CaCO3(s) → CaO(s) + CO2(g).…

A: (a)The reaction for the decomposition of one mole of calcium carbonate is obtained by reversing the…

Q: Find q dissolution and moles of solid NH4NO3  Given Mass of Water =200g Initial Temperature of…

A: The enthalpy of a solution (∂H) is related to the amount of energy liberated or absorbed (Q) per…

Q: SiO2(s) + 4 HF(aq) → SiF4(g) + 2 H2O(l)        ∆Horxn = 4.60 kJ ∆Hof, kJ/mol: ???         -320.1…

A: Introduction Whenever a particular reaction moves in th forward direction, this means the reaction…

Q: Calculate the ΔG∘rxn for 2ClF (g) + Br2 ​(g) <------> 2ClBr (g) + F2 ​(g) _____ kJ/mol

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Q: Predict the normal boiling point of hydrogen peroxide (H2O2) from the following data:     ΔHºf,…

A: Given that :   ΔHºf, kJ/mol Sº, J/(mol • K) H2O2(ℓ)  –187.8  110 H2O2(g)  –136.3  233

Q: Calculate the ΔHo for the reaction, 6NO2(g) + 8NH3(g) → 7N2(g) + 12H2O(l).   N2(g) + 2O2(g) →…

A: Mathematically, if a chemical reaction can be expressed as the sum of two or more chemical…

Q: Ozone (O3) in the atmosphere is subject to reaction with nitric oxide (NO) as O3(g)   +  NO(g)   ->…

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Q: Find the ΔH for this reaction :   3H2(g) +O3(g) --> 3H2O(g) Given the two following pieces of…

A: Given- 3H2(g) + O3(g) --> 3H2O(g)

Q: Determine the  ΔH of formation for sulfur trioxide gas if: 2 SO2 (g) +  O2 (g) --> 2 SO3 (g)    ΔH…

A: Enthalpy of formation ( ∆Hf ) :-           It is the enthalpy change of a system when one mole of…

Q: Determine the  ΔH of formation for sulfur trioxide gas if: 2 SO2 (g) +  O2 (g) --> 2 SO3 (g)    ΔH…

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Q: only your final answer in a box whenever appropriate. Correctness of units and number of significant…

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Q: In a coffee-cup calorimeter, 0.800 g of ammonium nitrate is mixed with 37.5g of water at an initial…

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Q: Calculate ΔH for the reactionNO(g) + O(g)---->NO2(g)given the following information:NO(g) + O3(g)…

A: The given chemical equations are represented as modified equations given below.

Q: value of ΔE for the combustion of propane, C3H8 is -185.81 KJ. What is the heat formation of C3H8?

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: The standard state Gibb's energy and entropy changes are known for the reaction: 2H,S(g) + 30,(g)…

A: Formula  ΔG° = ΔH° - TΔS° - 120 x 103 = ΔH° - 298 x 52  ΔH° = -120000 + 15496 = - 104504 J/mol ΔH° =…

Q: Using the ΔHo for the reaction calculate the increase in temperature of the resultant salt solution…

A: Recall the given reaction as follows     HClaq + NaOHaq → NaClaq + H2Ol  , ∆Ho=-55.9 kJ/mol Here…