1. For the reaction: 2Mg(s) + O2(g) → 2MgO Calculate the percent yield if 10g of...

1. For the reaction: 2Mg(s) + O2(g) → 2MgO Calculate the percent yield if 10g of Mg and 15g of O2 react, and 15.0g MgO was actually obtained.

2. For the reaction: H₂(g) + Cl₂(g) → HCl(g) (is this balanced?) calculate the mass, in grams of Hydrogen Chloride produced when H₂ reacts with 25.0g Cl₂.

Expert Solution

queen_honey_blossom answered 8 months ago

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Calculate the amount of heat transferred when 3.54 g of...

Consider the following reaction:2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJCalculate the amount of heat transferred when 3.54 g of Mg(s) reacts at constant pressure.How many grams of MgO are produced during an enthalpy change of -237 kJ ?How many kilojoules of heat are absorbed when 40.1 g of MgO(s) is decomposed into Mg(s) and O2(g) at constant pressure?

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s) ΔH=−1204kJ Calculate the amount of heat transferred when 3.55 g of...

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s) ΔH=−1204kJ Calculate the amount of heat transferred when 3.55 g of Mg(s) reacts at constant pressure ΔH= kJ

Refer to the reaction 2Mg + O2---> 2MgO starting amounts 1.25mg 2Mg, and 25g of O2....

Refer to the reaction 2Mg + O2---> 2MgO starting amounts 1.25mg 2Mg, and 25g of O2. What are the changes that occur in this reaction as its happening? Complete an ice table using the starting amounts and referring to the reaction above. *I have no idea how to do these, in the words of Micheal Scott, "Why don't you explain this to me like I'm 5 years old."*

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Part A Is this reaction exothermic or endothermic? exothermic endothermic SubmitMy...

Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ Part A Is this reaction exothermic or endothermic? exothermic endothermic SubmitMy AnswersGive Up Correct Part B Calculate the amount of heat transferred when 3.56 g of Mg(s) reacts at constant pressure. ΔH = kJ SubmitMy AnswersGive Up Part C How many grams of MgO are produced during an enthalpy change of -231 kJ ? m = g SubmitMy AnswersGive Up Part D How many kilojoules of heat are absorbed when 40.7 g of MgO(s) is...

Using the equation shown below, 2Mg(s)+ O2(g)>>> 2MgO(s) When 10.1g Mg reacts with 10.5g of O,...

Using the equation shown below, 2Mg(s)+ O2(g)>>> 2MgO(s) When 10.1g Mg reacts with 10.5g of O, 11.9g of the product was collected. Determine the limiting reactant, theoretical yield, percent yield and the remaining excess reactant from the reaction.

Magnesium metal burns in oxygen to form magnesium oxide, MgOMgO. 2Mg+O2→2MgO 1.) How many grams of...

Magnesium metal burns in oxygen to form magnesium oxide, MgOMgO. 2Mg+O2→2MgO 1.) How many grams of oxygen are needed to react with 28.0 gg of MgMg? 2.) How many grams of MgOMgO will result? 3.) How many grams of MgMg are needed to react with 28.0 gg of O2O2? 4.) How many grams of MgOMgO will result?

Calculate the enthalpy change for the reaction: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) ...

Calculate the enthalpy change for the reaction: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) ΔH°rxn = ? where: 2 Fe(s) + 6 H2O(ℓ) → 2 Fe(OH)3(s) + 3 H2(g) ΔH1° = +321.8 kJ 2 H2O(ℓ) → 2 H2(g) + O2(g) ΔH2° = +571.7 kJ Fe2O3(s) + 3 H2O(ℓ) → 2 Fe(OH)3(s) ΔH3° = +288.6 kJ

Consider the reaction between reactants S and O2: 2S(s)+3O2(g)→2SO3(g) 1. If a reaction vessel initially contains...

Consider the reaction between reactants S and O2: 2S(s)+3O2(g)→2SO3(g) 1. If a reaction vessel initially contains 5 molS and 9 molO2, how many moles of S will be in the reaction vessel once the reactants have reacted as much as possible? (Assume 100% actual yield.) Express your answer using two significant figures. 2. How many moles of O2 will be in the reaction vessel once the reactants have reacted as much as possible? (Assume 100% actual yield.) Express your answer...

Calculate the standard enthalpy of reaction of the following: a. C2H2(g) + O2(g)  2CO(g) +...

Calculate the standard enthalpy of reaction of the following: a. C2H2(g) + O2(g)  2CO(g) + H2O(l) b. NaOH(s) + HCl(g)  NaCl(s) + H2O(l) c. H2SO4(l) + 2 NaOH(s)  Na2SO4(s) + H2O(l)

1. What is the percent yield of a reaction in which 217 g of phosphorus trichloride...

1. What is the percent yield of a reaction in which 217 g of phosphorus trichloride reacts with excess water to form 115 g of HCl and aqueous phosphorous acid (H3PO3)?

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