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For a given reaction the following half-life and initial concentration data was collected. Use this data to determine the reaction's order and rate constant.
t(1/2) /s [A] / mol dm^-3.160 .050.0841 .085
Balance the following skeleton reaction, calculate Ecell, and state whether the reaction is spontaneous:
A sample of gas with a volume of 750 mL exerts a pressure of 98 kPa at 30 ?C.What pressure will the sample exert when it is compressed to 250 mL and cooled to -25 ?C?
Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows
the equilibrium mixture is compressed at constant temperature to a volume of 6.21 L? [NH3] = [H2S]=
If you are performing a Zinc-Copper Galvanic Cell where Zn is the Anode and Cu is the cathode and you soak the salt bridge with a saturated ammonium nitrate solution, in which direction would the ammonium ions move when the salt bridge completes t..
Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes. If the radius of sulfide ion is 184pm and the density of CaS is 2.60 g/cm3.
A solution of KOH in ethanol is made up by dissolving 0.335 g KOH in ethanol to form 250.0 mL of solution. Similarly, 1.455 g of C2H5I is dissolved in ethanol to form 250.0 mL of solution.
Methanol (CH3OH) is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO(g) + 2H2 (g) (equilibrium) CH3OH(g).
enough solid KHT be added to the kcl-nacl solution to ensure that some solid remain undissolved after 20 minutes stirring?
A 25ml sample of solution containing thallium(I) (TI) was treated with K2CrO4 to perticipate thallium chromate. The solid TI2CrO4 was filtered, washed to remove excess chromate, and then dissolved in dilute H2SO4
We titrated each layer with 0.10 NaOH and found that 1. took 2.57 mL of NaOH to titrate and 2. took 0.08 mL of NaOH to titrate. What is the concentration of acid in 1 and 2?
Not wanting to waste the expensive sample, you decided to measure the pH of the solution and determined it to be 1.85. What was the concentration of the orginal acid sample? (Hint: it is a monoprotic acid)
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