Need Help Solving Chemical Equations
1. Formaldehydem HCHO, once used as a preservative in biology laboratiries, is prepared commercially by the reaction: 2 CH3OH + O2 = 2 HCHO + 2 H2O The percent yield is 84.9% in a manufacturing plant. How much formaldyhyde can be expected from processing 397kg CH3OH? 2. A solution containing 1.63g if barium chloride is ...continues
(a) From the attached data calculate the equilibrium constant Kc for each of the three trials ... Please see attachment for data and (b), (c) and (d)
Equilibrium; Ionization; Concentration
15. Into a 5.0 liter flask was placed 35.7 g of PCI5 . The flask and contents were heated to 250 0 C, and then held at temperature until the following equilibiurm was established: PcI5 (g)< > Pc13 (g) + Cl2 (g) It was then shown by analysis that 875 g of Cl2 was pesent in the equilibrium mixture. Calculate K~. (This will ...continues
equilibrium no longer exists - reaction of opening a soft drink bottle
14. In a normal bottle of Coca Cola before it is opened, the following equilibrium exists: H2C03 <=> H+ +HCO3-; Ka = 4.2 x 1 O-7 Once the bottle is opened, this equilibrium no longer exists. Explain what happens, and write a new eqilibrium expression showing what happens. I'll give you a hint; there is more than one equi ...continues
Explain the NMR spectrum of NaBH4
Please explain the splitting pattern observed in this NMR spectrum of NaBH4.
I dont know how to solve these 2 problems. My issue is setting them up, I dont know how to set these problems up to get a solution for them. 1. Given info: 2 C6H6(l) + 15 O2(g) 12 CO2(g) + 6 H2O(l) G° = -6399 kJ C(s) + O2(g) CO2(g) G° = -394 kJ H2(g) + 1/2 O2(g) H2O(l) G° = -237 kJ Calculate G° for the foll ...continues
The following first order reaction is conducted in an inert liquid at 45 celsius: N2O5 N2O4 + 1/2 O2 THE RATE CONSTANT IS K=6.2*10 XY TO -4 SXY -1 AN 80.0g SAMPLE OF N2O5 IS DISSOLVED IN THE INERT LIQUID AND ALLOWED TO DECOMPOSE AT 45 CELSIUS. 1- HOW LONG WIL IT TAKE FOR THE QUANTITY OF N2O5 TO BE REDUCED TO 2.5 ...continues
In the manufacture of sodium carbonate, NaHCO3(s) is decomposed by heating. 2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Kp=0.23 at 100 celsius. 1-If a sample of NaHCO3(S) is brought a temperature of 100 ...continues
At room temperature( 20 CELSIUS), milk turns sour in about 64 hours. In a refrigerator at 3 celsius, 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 ...continues
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 tranfered to a reaction vessel of twice the volume, the amounts of reactants and products will remain unchanged 2- Addition of an appro ...continues
