ZuoTi.Pro
Question

2CH3OH(g)→2CH4(g)+O2(g),ΔH=+252.8 kJ 1. Calculate the amount of heat transferred when 25.0 gg of CH3OH(g)CH3OH(g) is decomposed...

2CH3OH(g)→2CH4(g)+O2(g),ΔH=+252.8 kJ

1. Calculate the amount of heat transferred when 25.0 gg of CH3OH(g)CH3OH(g) is decomposed by this reaction at constant pressure

2. For a given sample of CH3OHCH3OH, the enthalpy change during the reaction is 82.3 kJkJ . What mass of methane gas is produced?

3. How many kilojoules of heat are released when 38.6 gg of CH4(g)CH4(g) reacts completely with O2(g)O2(g) to form CH3OH(g)CH3OH(g) at constant pressure?

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
2CH3OH(g)→2CH4(g)+O2(g),ΔH=+252.8 kJ 1. Calculate the amount of heat transferred when 25.0 gg of CH3OH(g)CH3OH(g) is decomposed...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Methanol (CH3OH) burns according to the equation 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l), ΔH°rxn =...

    Methanol (CH3OH) burns according to the equation 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l), ΔH°rxn = –1454 kJ/mol. A) How much heat, in kilojoules, is given off when 150.0 g of methanol is burned? [ Select ] B) How many grams of CO2 are produced when the amount of heat determined in part A is released? [ Select ] Molar masses: CH3OH = 32.04 g/mol O2 = 32.00 g/mol CO2 = 44.01 g/mol H2O = 18.02 g/mol

  • Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. How many grams of MgO are produced during an enthalpy...

    Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. How many grams of MgO are produced during an enthalpy change of -95.0 kJ ? b. How many kilojoules of heat are absorbed when 7.60 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 a. Is this reaction exothermic or endothermic? b. Calculate the amount...

    Consider the following reaction: 2Mg(s)+O2(g)→2MgO(s)ΔH=−1204kJ a. Is this reaction exothermic or endothermic? b. Calculate the amount of heat transferred when 2.6 gg of Mg(s)Mg(s) reacts at constant pressure. Express your answer using two significant figures.

  • For the following reaction: 2CH4(g) + O2(g) → 2CO(g) + 4H2(g) Compound    ΔH°f (kJ mol-1)...

    For the following reaction: 2CH4(g) + O2(g) → 2CO(g) + 4H2(g) Compound    ΔH°f (kJ mol-1)    S° (J mol-1 K-1) CH4 (g)    -74.87    188.66 O2 (g)    0.00    205.70 CO (g)    -110.53    197.66 H2 (g)    0.00    130.68 Calculate ΔG°rx (in kJ) at 345.31 K for this reaction. Report your answer to two decimal places in standard notation (i.e. 123.45 kJ). Assume ΔH°f and S° do not vary as a function of temperature.

  • Given: C(s) + O2(g) ---> CO2(g) ΔH = −393.5 kJ/mol S(s) + O2(g) ---> SO2(g) ΔH...

    Given: C(s) + O2(g) ---> CO2(g) ΔH = −393.5 kJ/mol S(s) + O2(g) ---> SO2(g) ΔH = −296.8 kJ/mol C(s) + 2S(s) ---> CS2(ℓ) ΔH = +87.9 kJ/mol A) Calculate the standard enthalpy change for the following reaction CS2(ℓ) + 3O2(g) ---> CO2(g) + 2SO2(g) ΔH° rxn = -1075 kJ/mol B) Using the equation and standard enthalpy change for the reaction (from part A), calculate the amount of heat produced or consumed when 3.2 mol of CS2 reacts with excess...

  • When hydrogen peroxide (H2O2) is used in rocket fuels, it produces water, oxygen, and heat. 2H2O2(l)⟶2H2O(l)+O2(g)ΔH=−196kJ...

    When hydrogen peroxide (H2O2) is used in rocket fuels, it produces water, oxygen, and heat. 2H2O2(l)⟶2H2O(l)+O2(g)ΔH=−196kJ Part B: How many kilojoules are released when 3.05 moles of H2O2 reacts? Express your answer with the appropriate units. Part C: How many kilojoules are released when 277 g of O2 is produced? Express your answer with the appropriate units.

  • Consider the following reaction: 2Na + Cl2(g) → 2NaCl

    Consider the following reaction:2Na + Cl2(g) → 2NaCl ΔH = -821.8 kJ(a) Is the reaction exothermic or endothermic? (b) Calculate the amount of heat transferred when 5.6 g of Na reacts at constant pressure. (c) How many grams of NaCl are produced during an enthalpy change of 16.5 kJ? (d) How many kilojoules of heat are absorbed when 44.1 g of NaCl is decomposed into Na and Cl2 at constant pressure?

  • 1. What mass of natural gas (CH4) must you burn to emit 260 kJ of heat?...

    1. What mass of natural gas (CH4) must you burn to emit 260 kJ of heat? CH4(g)+2O2(g)→CO2(g)+2H2O(g) ΔH∘rxn=−802.3kJ 2.Consider the following thermochemical equation for the combustion of acetone, C3H6OC3H6O, the main ingredient in nail polish remover: C3H6O(l)+4O2(g)→3CO2(g)+3H2O(g)ΔH∘rxn=−1790kJ If a bottle of nail polish remover contains 173 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL 3.Zinc metal reacts with hydrochloric acid according to the following balanced equation: Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When...

  • Consider the following reaction: CH3OH(9) CO(9)+2H (9) AH = +90.7kJ AH = 130 kJ Previous Answers...

    Consider the following reaction: CH3OH(9) CO(9)+2H (9) AH = +90.7kJ AH = 130 kJ Previous Answers Correct Part For a given sample of CH,OH the enthalpy change on reaction is 185 kJ How many grams of hydrogen gas are produced? I AED ROO? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part D What is the value of AH for the reverse of the previous reaction? AED ROO? AH. Submit Previous Answers Request Answer X Incorrect;...

  • What mass of silver chloride can be produced from 1.34 L of a 0.174 M solution...

    What mass of silver chloride can be produced from 1.34 L of a 0.174 M solution of silver nitrate? Express your answer with the appropriate units. The reaction described in Part A required 3.12 L of calcium chloride. What is the concentration of this calcium chloride solution? Express your answer with the appropriate units. A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT