Change in (delta) H degrees = 2816kJ 6CO2(g) + 6H2O (l) <->C6H12O6(s) + 6O2 (g) How is the equilibrium yield of C6H12O6 affected by: a. Increasing P CO2 (explain) b. Increasing temperature (explain) c. Removing CO2 (explain) d. Decreasing the total pressure (explain) e. Removing part of the C6H12O6 (explain) f. Addin
A quantity of ice at 0.0 degrees Celsius was added to 27.8g of water at 21.0 degrees Celsius to give water at 0.0 degrees Celsius. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g*C).
1. a. Calculate the [H+] of a weak acid solution with [OH-] = 3.50x10^-8M b. Calculate the pH of the solution c. Calculate the [H+] of a Classic Coke if the pH=3.75 2. Write the balanced equations: (Neutralizations) in ionic form and show net ionic equation. a. H2SO4(aq) + NaHCO3(aq)--> b. H3PO4(aq)+Mg(OH)2--> 3. Cal
In a heating curve of a solid substance: Which phase (curve) would represent the heat of vaporization? Which phase (curve) would represent kinetic energy? Which phase (curve) would represent the melting point? Which phase (curve) would represent the phase change (s)? Which phase (curve) would represent the greatest increase
In a heating curve of a solid substance: Which phase (curve) would represent the heat of vaporization? Which phase (curve) would represent kinetic energy? Which phase (curve) would represent the melting point? Which phase (curve) would represent the phase change (s)? Which phase (curve) would represent the greatest increa
1) Calculate w and Delta E for the expansion of 20.0g of nitrogen gas from a volume of 30.0 L to a volume of 40.0 L at a constant 300.0K. 2) The density of ice at its normal freezing temperature is 0.917g/mL while that of liquid water at the same temperature is 0.9998 g/mL . If Delta H(fusion) of ice is 6.009 kJ/mol, what is
1. Which will be a better cold compress, water or ethanol? Explain (specific heats for water and ethanol are 1.00 cal/g. degrees Celsius. and .59 cal/g. degrees Celsius respectively? 2.Why is that steam burns are more severe than burns from water?
I have the data but I am having a hard time determining the end result. How much heat energy is required to raise the temp. of 5.0g of H20 from -10C to 110C ? (ice to steam) Given the following data: Specific Heat J/gK Molar Heat Capacity J/molK Formula Mass Water (l) 4.184
How much heat energy is required to raise the temperature of 5.0g of H20 from -10 degrees celsius to 110 degrees celsius ?
I am in summer school and I missed both of these on my test and my final is cumulative and there will be questions like these on the final. 1. Sketch a diagram representing an exothermic reaction. Label both the horizontal and vertical axes. Show reactants and products, energy of activation and (delta Hrxn) on your sketch.
Chloroform has a Hvap = 29.2 kJ/mol and has a Svap=87.5 J/(mol 61504;K). What is the boiling point of chloroform in Celsius?
Hi, Please explain this as ELEMENTARY as possible. Bromine is one of the only two elements that is liquid at room temp. Bromine has a heat vap of Hvap = 30.91kJ/mol and its boiling point is 59EC. What is the entropy of vaporization for bromine?
A chemist ran the reaction CH3CH2Cl(l) + KOH(aq) ^ CH3CH2OH(l) +KCL(aq) by heating 47.2 grams of CH3CH2Cl with excess KOH and obtained a yield of 28.7 grams of CH3CH2OH. What was his % yield? I do not know where to begin with this problem. It only gives grams of one reactant? What is the actual yield? Detailed step by step in
How will each of the following changes in condition alter the rate of an enzyme-catalyzed reaction: -decreasing temp to 10 deg C? -increasing the pH of the solution from 7 to 11? -heating only the enzyme to 100 deg C?
I have an unknown salt mixture, which was heated and the mass of the precipitate was calculated. The limiting reactant was determined, and based on this data I should be able to determine the salt mixture composition, but I have no idea where to even begin.
Calculate deltaG of reaction for: glucose+ 2 ATP ----> 2 ADP + 2 G3P For concentrations, glucose: 5.0 mM G3P:0.019 mM ATP: 1.85 mM ADP:0.14 mM delta G for reaction under standard conditions = -1.97 kJ, assuming the temperature is 298 K. Do I use delta G standard + RT ln K for this reaction? What is T in th
Kp is 1.0x10-3 atm-1/2 at 2000K and delta S at standard temperature and pressure = 87.864 J/K mole (delta Cp = 0) for the reaction CO2(g) yielding CO(g) + 1/2 O2(g) (this reaction is reversible) (a) Calculate delta G at 2000K, (b) Calculate delta G at standard temperature and pressure at 298K, and (c) Calculate the degr
NOBr in a 1.1 g quantity is placed in an evacuated 1 liter flask at -55 degrees C. The flask is warmed to 0 degrees C where the gaseous contents exert a pressure of 0.3 atm (all species are gaseous). At 25 degrees C, the equilibrium total pressure rises to 0.35 atm. What is Kp at 0 degrees C and 25 degrees C? What is delta H (as
Question: The vapor pressure of ethylene is given as a function of temperature by the equation: log p = (-834.13/T) + 1.75logT-8.37* 10^-3T+5.323 Calculate delta Hvap of ethylene at its normal boiling point (-103.90C).
Hydrogen peroxide decomposes according to the following thermochemical reaction: H2O2(l) --> H2O(l) + 1/2 O2(g); Delta H = -98.2 kJ Calculate the change in enthalpy, Delta H, when 1.00 g of hydrogen peroxide decomposes.
Estimate the change in enthalpy, Delta H, for the following reaction: H2(g) + Cl2(g) --> 2 HCl(g)
(1) Which member of each pair of reactions occurs the most rapidly and by what mechanisms? a. i. (CH3)3CCH2Cl -- CN-, ethanol --> ii. PhCH2Cl -- CN-, ethanol --> b. i. CH3CH2CH2CH2Br -- CN-, (CH3)2N)2PO --> ii. CH3CH2CH2CH2Br -- CN-, CH3OH --> c. i. (CH3)3COH -- H30+, 25 degrees Celsius --> ii. CH3CH2CH2CH2OH -- H30
10. Look at the enthalpy cycle below... a) What enthalpy change is represented by delta H1? b) What are the combined enthalpy changes represented by delta H2? c. What enthalpy change is represented by delta H3? d. write and equation that links delta H1, delta H2, and delta H3. e. use the answers from parts a and d and the f
The combustion of isopropyl alcohol occurs according to the following reaction: C3H7OH (l) + 9/2 (g) ----> 3CO2(g) + 4H20 (g) How much work is done if 1 mole of isopropyl alcohol is burned at a temperature of 298k and 1 atm. pressure? Give your answer in the following units: (a) L- atm, (b) J and (c) KJ. If the heat
Calculate the specific heat capacity of benzene(C6H6), given that 192 J of heat is required to raise the temperature of a 20.0g sample of benzene from 25.2 C to 38.8 C. What is the molar heat capacity of benzene? (the molar heat capacity is the heat capacity of 1 mole of benzene) 3.50 Kcal of heat is removed from a 1.50 Kg
THE ENDOTHERMIC REACTION A(g) + B(g) 2C(g) PROCEEDS TO AN EQUILIBRIUM CONDITION AT 200 CELSIUS. WHICH OF THE FOLLOWING STATEMENTS IS (ARE) TRUE? 1- If the mixture is transferred to a reaction vessel of twice the volume, the amounts of reactants and products will remain unchanged 2- Addition of an appr
At room temperature (20 C), milk turns sour in about 64 hours. In a refrigerator at 3 C, milk can be stored 3 times as long before it sours. At each temperature, the constant K: K= c/(souring time) where c is a constant. 1. Estimate the activation energy of the reaction that causes the souring of milk 2. How long
Question 26 The general formula of an alkane is: CnH2n CnH2n+2 CnH2n-2 CnH2n+4 CnH2n-4 Question 27 Endothermic reactions cause the surroundings to cool down heat up become acidic increase electromagnetic radiation Question 28 In the compound 2-iodo-4-nitrom
I just need the answer!!!!!!!!!!!!!!!!! Question 11 Multiple Choice 20 points ls2 2s2 2p5 is the electron configuration for nitrogen sulfur magnesium fluorine Question 12 Multiple Choice 20 points An atom of the isotope sulfur - 31 consists of how many protons, neutrons, and ele
For the reaction CO+NO2>CO2+NO the activation energy for the forward reaction is 135 kJ/mol of CO activated. a) Determine the heat of reaction. b) From the data given, and the ^Hr for the reaction, determine the activation energy for the reverse reaction.