Please help with this chemistry question, The heat of reaction when 1 mole of calcium carbonate (CaCO3) is decompossed into lime and carbon dioxide is +176.9 kj/mol. Given that the heat of formation of CaCO3 and CO2 (in their standard states ...

Calculate the heat of the following reaction from standard enthalpies of formation. Ca(OH)2(s) + CO2(g) --> CaCO3(s) + H2O(g) Thank you very much in advance for any help!!

a. Br2(gas)--->Br2(liquid) b. CaCo3(solid)--->CaO(s)+CO2(g) c. 2NO(g)+O2(g)--->2NO2(g)

Acetylene, C2H2, is a gas commonly used in welding. It is formed in the reaction of calcium carbide, CaC2, with water. Given the thermochemical equations below, the value of ΔH°f for acetylene in units of kilojoules per mole is ____________ ...

which reaction is ∆H°rxn equal to ∆H°f of the product(s)? Do not need to look up any values to answer. Check all that apply: a) Na(s) + 1/2Cl2(g) --> NaCl(s) b) 2Na(s) + Cl2(g) --> 2NaCl(s) c) CO(g) +1/2O2(g) --> CO2(g) d) C...

Use standard heats of formation and absolute entropies to calculate the equilibrium pressure PCO2 at 307 K. CaCO3(s) CaO(s) + CO2(g)

CaCO3(s) --------> CaO9S) + CO2(g) Use the following date: the heats of formation f calcium carbonate, calcium oxide, and carbon dioxide are 288.6, 151.9, and 94.1 kcal/mol respectively. Please show your work so I can follow it step by ...

determine the heat of formation of calcium carbonate from the thermochemical equations given below. Ca(OH)2-->CaO+H2O Delta h= 65.2kj Ca(OH)2+CO2--->CaCO3+H2O delta h= -113.2kj C+O2---->CO2 delta h=-393.5kj 2Ca+O2--->2CaO ...

1. Name three ways that chemical equilibrium can be disturbed. 2. Describe three situations in which ionic reactions go to completion. 3. Predict the effect that decreasing pressure would have on each of the following reaction systems at ...

CaO (s) + CO2 (g) -> CaCO3 (s) it says use the table to calculate delta h for the following reactions. and from the results, decide if reaction will occur spontaneously? calcium carbonate's heat of formation is -1207.6 Calcium ...

For number eight Use standard heats of formation and absolute entropies to calculate K for the reaction below at 282 K. HCN(aq) + NaOH(aq)---> NaCN(aq) + H2O(l) I tried to calculate using deltaG = -RT ln(k) both including the Na+ (aq...

1.) Calculate (triangle)H^0 for the following reactions. a. Br2(g) ----> Br2(l) b. CaCO3(s) -----> CaO(s) + CO2(g) c. 2NO(g) + O2(g) -----> 2NO2(g) 2.) With one exception, the standard heats of formation of Na(s), O2(g), Br2(l), ...

Calculate the heat of the following reaction from standard enthalpies of formation. Ca(OH)2(s) + CO2(g) --> CaCO3(s) + H2O(g)

Calculate the heat of decomposition for this process @ constant pressure 25 degrees celsius? CaCO3 (s) --> CaO (s) + CO2 (g) is the equation the standard enthalpy of formation for the reactants and products are the following: CaCO3 = -...

2 moles of a compound are allowed to react in a foam coffee cup that contains 162 grams of water. The reaction caused the tempeature of the water to rise from 21 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat ...

Given the reaction: N2(g) + 3 H2(g)  2 NH3(g) If the rate of formation of NH3 is 6.0 x 10-3 mol/s, calculate the rate of consumption of H in mol/s. Also, please help with this other question: Given the following reaction, how ...

Calculate the heat of decomposition using enthalpy of formation information for this process at constant pressure and 25°C: CaCO3(s) CaO(s) + CO2(g) 964.8 kJ 177.8 kJ –177.8 kJ –964.8 kJ Calculate ...

Natural waters often contain relatively high levels of calcium ion, Ca2+, and hydrogen carbonate ion (bi-carbonate), HCO3-, from the leaching of minerals into the water. When such water is used commercially or in the home, heating of the water ...

1. what is the standard heat of reaction for the combustion of hydrogen sulfide? 2H2S(g) + 3O2(g) ---> 2H2O(g) + 2SO2(g) 2. Calculate the enthalpy change (in kJ) for the following reaction. State whether the reaction is exothermic or ...

1. An aqueous solution of a sulphate is made from a solid hydroxide, of a metal M, by the reaction: M(OH)2 (s)+ H2SO4(aq)+2H2O(l) For which hydroxide would the method not work? A. barium hydroxide B. Copper(II) hydroxide C. iron (II) ...

1) Hydrogen and oxygen react to produce water according to the equation below. 2 H2 + O2 2 H2O How many liters of hydrogen at STP are needed to produce 0.53 mol H2O? ___ L 2) A solution containing 0.17 mol BaCl2 is mixed with a solution ...

What type of reaction involves formation of precipitate and evolution of gas? I think the answer is single displacement What type of reaction involves changes in color and oxidation numbers? I think it is redox What type of redox reaction ...

i just want to know how to do this type of problem so i can do them myself. Determine the volume of hydrogen gas needed to react completely with 2.72 L of oxygen gas to form water. How many liters of propane gas (C3H8) will undergo complete ...