Question 21 4 pts Consider the following reaction: 2 Mg + O2 → 2 MgO AH...

Question

Question

Answer 1

Answer #1

for 2 moles of Mg Dhuon=-1203 kJ 8. DH per mole i D Huxu = - 1203 kJ/mol for 4 moles = 4x (-1203) = -2406 kJ

Answer 2

Similar Homework Help Questions

=-1203 kJ Consider the following reaction:2 Mg +02 -2 Mg0 AH rxn Calculate the amount of...

=-1203 kJ Consider the following reaction:2 Mg +02 -2 Mg0 AH rxn Calculate the amount of heat (in kJ) associated with complete reaction of 4 moles of Mg. none of the above -12031 -4012 -601.5 2406
QUESTION 16 One mole of (NH4)2HPO4 contains how many moles of hydrogen atoms? 04 02 000...

QUESTION 16 One mole of (NH4)2HPO4 contains how many moles of hydrogen atoms? 04 02 000 08 QUESTION 1 Consider the following reaction: 2 Mg +022 MgO AH rxn=-1203 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 4 moles of Mg. -4812 kJ -601.5 kJ -1203 kJ -2406 kJ
how many moles of lithium nitrate are theoretically produced if we start with 34 moles of...

how many moles of lithium nitrate are theoretically produced if we start with 34 moles of Ca(NO3)2 and 24 moles of LigPO4? Reaction: 3Ca(NO3)2 + 2Li3PO4 -- LINO3 + Caz(PO4)2 A) 1.1 B) 6.8 C) 1.2 D) 7.2 E) not enough information 28) – 28) What is the limiting reactant for the following reaction given we have 2.6 moles of HCl and 1.4 moles of Ca(OH)2? Reaction: 2HCl + Ca(OH)2 + 2H2O +CaCl2 A) Ca(OH)2 B) HCI C) CaCl2 D)...

27) How many moles of lithium nitrate are theoretically produced if we start with 34 moles Ca(NO₃)₂ and 24 moles of Li₃PO₄ ?

27) How many moles of lithium nitrate are theoretically produced if we start with 34 moles Ca(NO₃)₂ and 24 moles of Li₃PO₄ ?A) 1.4B) 6.8C) 12D) 7.2E) not enough information28) What is the limiting reactant for the following reaction given we have 2.6 moles of HCI and 1.4 moles of Ca(OH)₂?Reaction: 2 HCl+Ca(OH₂ → 2 H₂ O+CaCl₂.A) Ca(OH)₂B) HClC) CaCl₂D) H₂ OE) not enough information29) What is the limiting reactant for the reaction below given that you start with 10,0...
7.) Given the following reaction: 2 Mg (s)+ O2 (g) 2 MgO (s) AH 1204 kJ/mol...

7.) Given the following reaction: 2 Mg (s)+ O2 (g) 2 MgO (s) AH 1204 kJ/mol a.) Calculate the mass of magnesium oxide formed if a reaction gives off 395 kJ of heat. b.) Draw a potential energy diagram for the reaction. Be sure to label each axis, the reactants, products, enthalpy of reaction, and activation energy on your diagram.
For the balanced thermochemical equation below: 2 Mg(s) + O2(8) + 2Mg0g AH (MgO) --601.8 Assuming...

For the balanced thermochemical equation below: 2 Mg(s) + O2(8) + 2Mg0g AH (MgO) --601.8 Assuming 40.0 g of oxygen gas is consumed in the presence of an excess amount of magnesium, how much heat in kJ is evolved (sign is assumed to be negative for heat evolved; do not include the sign). Report to the nearest 0.1 kJ.

Experiment 19 DATA AND CALCULATIONS Reaction 1 (MgO) Reaction 2 (Mg) 1. Volume of 1.00 M...

Experiment 19 DATA AND CALCULATIONS Reaction 1 (MgO) Reaction 2 (Mg) 1. Volume of 1.00 M HCl 2. Final temperature, t 3. Initial temperature, 4. Change in temperature, ar 2 eC 5. Mass of solid 6. Heat, q kJ 7. AH 8. Moles mol Mgo mol Mg 10. Determine ??mol Mg for reaction (4)". 11. Percent error
Find. AH°rxn for the reaction 2Ag2S(s) + 2H20(1) 4Ag(s) + 2H2S(9) + O2(g). [AH: (Ag2S(s)) =...

Find. AH°rxn for the reaction 2Ag2S(s) + 2H20(1) 4Ag(s) + 2H2S(9) + O2(g). [AH: (Ag2S(s)) = -32.6 kJ/mol; AHF (H2S(g)) = -20.5 kJ/mol; AH (H2O(0)) = -285,5 kJ/mol] O 5752 kJ/mol O 565.2 kJ/mol O None of the above O 585.2 kJ/mol O 595.2 kJ/mol
Consider the following unbalanced reaction. Mg(s) + O2(g) → MgO(s) How many grams of O2 are...

Consider the following unbalanced reaction. Mg(s) + O2(g) → MgO(s) How many grams of O2 are needed to produce 142 g of MgO if the reaction has a 60.5% yield?

Find AH®rxn for the reaction 2Ag2S(s) + 2H2O(0) - 4Ag(s) + 2H2S(g) + O2(g). [AH°F (Ag2S(s))...

Find AH®rxn for the reaction 2Ag2S(s) + 2H2O(0) - 4Ag(s) + 2H2S(g) + O2(g). [AH°F (Ag2S(s)) = -326 kJ/mol; AH+ (H2S(g)) = -20.5 kJ/mol; AHT (H2000) = -285.5 kJ/mol] O 575.2 kJ/mol 0 565.2 kJ/mol O None of the above O 585.2 kJ/mol 0 595.2 kJ/mol