Answer the following the questions given below  Given (Dissolution of Sodium Hydroxide) Mass of Water = 200g  Initial Temperature of water = 20.0°C              Final Temperature of water = 26.49 °C              ?water= 5430.832J ?dissolution= 5566.6028J Mass of Solid NaOH= 5.0g  Moles of solid NaOH=0.12501 mol Δ?of NaOH dissolution= -44.51 kJ/mol Questions: 1.Is the dissolution of NaOH endothermic or exothermic? Justify your answer. 2.If you touch the sides of a beaker containing NaOH being dissolved, will it feel warm or cold to touch?

Q: A student performed this experiment by mixing 50.0 mL of 2.0 M NaOH solution with 50.0 mL of 2.0  M…

A: Given: Concentration of NaOH reacting = 2.0 M Volume of NaOH solution = 50.0 mL = 0.050 L…

Q: Chemical Changes Lab Chemistry Name: Per. Post-laboratory Questions: Answer the following questions…

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Q: correct thermochemical equation for the combustion of glucose in pure oxygen gas? In an experiment,…

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Q: In the following experiment, a coffee-cup calorimeter containing 100 mL of H2 0 is used. The initial…

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Q: How many moles of H₂ are required to produce -3651 kJ of heat in the following reaction? N₂ (g) + 3…

A: Mole of H2 needed = 117.35 mole

Q: Question 5 of 24 In the following reaction, what is the quantity of heat (in kJ) released when 3.67…

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Q: 1.1. For the reaction below, what would cause an increase in NaOH? Maybe more than one correct…

A: Given equilibrium reaction:  Mg(OH)2(aq) + 2 Na(s) <=> 2 NaOH(aq) + Mg(s) ∆H = - 14 KJ/mol

Q: 0.178 mole sample of solid NaX is dissolved in 275 mL of water in an insulated container at 23.7°C…

A: The question is based on the concept of specific heat capacity.  It is defined as the amount of heat…

Q: Which substance in the reaction below is reduced? V205 (s) + 5 Ca→2V0 + 5 Ca0S) a. Ca O b. V205 OCv…

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Q: Consider the reaction B,Ho(g) + 3 0;(g) - B,03(s) + 3 H,0(g) AH = -2035 kJ/mol Calculate the amount…

A: The given chemical reaction as follows --- B2H6 (g)  +  3 O2 (g)   →   B2O3 (s)   +   3 H2O (g)…

Q: How many moles of H2 are required to produce -2501 kJ of heat in the following reaction? N2 (g) + 3…

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Q: Using a coffee cup calorimeter, 3.15 g of ammonium chloride, NH4Cl is added 100.0 g of water at 25.0…

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Q: Question 43 How much heat is rel;eased to the surroundings when 5.00 g of CO2 is produced according…

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Q: 13. Hydrochloric acid neutralizes sodium hydroxide, forming sodium chloride and water. NaOH (aq) +…

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Q: Question 7 of 44 Which of the following best describes the reaction? 2 H₂S(g) + 3 O₂(g) → 2 H₂O(g)…

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Q: Determine the heat released or abosorbed in J during the dissolving process when calcium chloride…

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Q: 9. A piece of tin (specific heat 0.222 J/g*C) with an initial temperature of 80.0°C is placed in…

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Q: What quantity of heat (in kJ) will be released if 0.1739 mol of NH3 are mixed with 0.200 mol of O₂…

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Q: Can you answer question 12 only

A: The given reaction has to be classified as either exothermic or endothermic process.

Q: Mixing 50 ml of HCI ( 2.0 M) with 50 ml of NaOH ( 2.0 M ) raises the temperature of the calorimeter…

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Q: A 8.65 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: A chemist measures the energy change AH during the following reaction: C₂Hg(g)+50₂(g) → 3 CO₂(g) +…

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Q: Which of the following is an endothermic process? a) water freezing b) propane burning in air Oc)…

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Q: In the following reaction, how many moles of CH;OH are required to give off 5766 kJ of heat? 2 CH;OH…

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Q: A mercury mirror forms inside a test tube as a result of the thermal decomposition of mercury(II)…

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Q: Enthalpy for dissolution of KOH is what? Molar mass of KOH is 56.11 g/mol, the specific heat is…

A: Let's identify the given data…

Q: A 4.53 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: First Calculate specific heat of salt by using principle of calorimetry. Then use q= mC∆T

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Q: Consider the reaction shown: H2(g) + 1 2O2(g) --> H2O(l)        ΔH = -286 kJ/mol  We can say that…

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Q: A solution is made by mixing 244.0 mL of ethanol initially at 12.9 °C with 244.0 mL of water…

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Q: Heat content (H) kilojoules 140 120 100 80-- 60 40 20 Graph 5 Progress of Reaction Use the graph…

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Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.