bme1
This page lists questions and answers that were posted by visitors named bme1.
Questions
The following questions were asked by visitors named bme1.
2H2 + O2 yield 2H2O to calculate bond enthalpy, we have to take bond breaking minus bond making, how do we know which one is bond breaking and bond making
15 years ago
2H2 + O2 yield 2H2O , so if i switch it around, 2H2O yield 2H2 + O2. Would it change which one is breaking bond, which one is making bond. So technically is the left side always breaking bond, right side is forming bond
15 years ago
for thermodynamic, standard is 25 celsius and 10^5 Pa, so in this case does it mean that 1atm=10^5 Pa while for stp 1atm=101325 Pa
15 years ago
according to van deer walls equation, why does H2S have higher parameter a than CO2
15 years ago
Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g)
15 years ago
The initial pressure for the compounds involved in the reaction displayed were determined to be P(SO2(g)) = 0.5932 atm, P(O2(g)) = 0.4886 atm, P(SO3(g)) = 0.09287 atm. Calculate the value of the equilibrium constant (Kp) at 1000 K if the equilibrium press...
15 years ago
The initial concentration for the compounds involved in the reaction shown were determined to be [CS2(g)] = 1.075 mol/L, [H2(g)] = 1.436 mol/L, [CH4(g)] = 0.6740 mol/L, [H2S(g)] = 0.3120 mol/L. Calculate the value of the equilibrium constant (Kc) at 1175...
15 years ago
If the initial pressure of SO3(g) is 4.775 atm, calculate the % of SO3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 1000 K is 24.40. The initial pressure of the reaction products is 0 atm. 2SO3...
15 years ago
When a sample of NO2(g) (5.641 mol) is placed in 360.0 L reaction vessel at 716.0 K and allowed to come to equilibrium the mixture contains 3.412 mol of NO(g). What is the equilibrium concentration (mol/L) of NO(g)? When a sample of PCl5(g) (1228 grams) i...
15 years ago
Calculate the molarity (mol/L) of Ba2+ when BaCrO4 is placed in a 0.0457 M K2CrO4 solution. The equation represents the solubility process. K(sp)=1.2x10^-10 BaCrO4 (s) Ba2+ (aq) + CrO42- (aq)
15 years ago
The following reaction is at equilibrium at a pressure of 1 atm, in a closed container. NaOH(s) + CO2(g) NaHCO3(s); ΔH°rxn < 0 Which, if any, of the following actions will decrease the concentration of CO2 gas present at equilibrium? A. lowering the tempe...
15 years ago
can the concentrations of reactant and products affect the directions of equilibrium constant
15 years ago
The following reaction is at equilibrium in a closed container. CuSO4.5H2O(s) CuSO4(s) + 5H2O(g) What actions, if any, will lead to an increase in the pressure of H2O present at equilibrium? the answer is nothing, but wouldnt decrease in volume will incre...
15 years ago
2H2O(l)=2H2(g) +O2(g) the stress is an increase in pressure. If there is an increase in pressure, the reaction would go to the side of fewer moles. Even though the left side has no moles of gas, is the result still shifting to the left
15 years ago
2H2O(l)=2H2(g) +O2(g) if water is removed, the direction of equilibrium is unaffected since liquid water is not in the equil equation. What if large amount of water is removed, is the answer still the same
15 years ago
for chemical equilibrium, what is the difference between percent ionization and percent dissociation
15 years ago
max electrostatic potential is where there are low electron density, does it mean that the larger the number of max potential indicates a strong acid strength
15 years ago
does a low dipole indicate a strong acid
15 years ago
for haloacetic acids, HBr has higher stronger acid strength then HF but doesnt HBr has low dipole then
15 years ago
in NaCl, Na+ does not hydrolize but in Cr(NO3)3, Cr3+ hydrolizes to give H+, so when do we know which cation hydrolizes and which doesnt
15 years ago
the reaction between CV+ and -OH, is CV+ lewis acid and OH lewis base
15 years ago
the reaction between CV+ and -OH, which is lewis acid and lewis base? lewis acid: CV+ lewis base: -OH is this correct
15 years ago
The overall rate of a chemical reaction is determined by a)the slowest step in the reaction mechanism. b)the fastest step in the reaction mechanism. c)ΔG for the overall reaction. d)the last step in the reaction mechanism. e)the first step in the reaction...
15 years ago
does the half life formula t=ln2/k give sec as unit or min as unit
15 years ago
so if my graph is absorbance vs time in minute, then my half life formula should give me time in minute right?
15 years ago
if a piston is insulated and being pushed, is the temperature increased
15 years ago
in a piston is locked in place and the cylinder is placed in a boiling water, the temperature, pressure, internal energy are all increase if a piston is being pushed inward, would it have the same answer as above
15 years ago
G naught doesnt tell you whether the reaction is spontaneous or not
15 years ago
Answers
The following answers were posted by visitors named bme1.