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The following set of data was obtained by the method of initial rates for the reaction: S2O8^2- (aq) + 3 I- (aq) ==> 2 SO4^2- (aq) + I3- (aq) What is the initial rate when S2O8^2- is 0.15M and I- is 0.15M? [S2O8^2-] (M) [I-] (M) Initial Rat (M s^-1) Expt 1: 0.25 0.10 9.00 x 10^-3 Expt 2: 0.10 0.10 3.60 x 10^-3 Expt 3: 0.20 0.30 2.16 x 10^-2 A) 4.10 x 10^-6 M s^-1 B) 8.10 x 10^-3 M s^-1 C) 1.22 x 10^-2 M s^-1 D) 5.40 x 10^-2 M s^-1
What is the molar mass of X if 0.85g of X depresses the freezing point of 100g of benzene by 0.47Cdegrees?
In a particular redox reaction, Cr is oxidized to CrO42 and Ag is reduced to Ag. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
Neopentyl alcohol, (CH3)3CCH20H,cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration? What product would you expect from addition of deuterium chloride to 2-cyclohexyl-4methyl-2-pentene?
Carbon-14 is a radioactive nucleus with a half-life of 5760 years. Living matter exchanges carbon with its surrounding (for example, through CO2) so that a constant level of 14C is maintained, corresponding to 15.3 decay events per minute
Consider the following reaction: CO + 2H2= CH3OH, kp= 2.26 x 10^2 at 25C . Calculate delta G for the reaction at 25C under each of the following conditions.
A student reacted 0.22 g of zinc (Zn) with excess hydrochloric acid (HCl) to generate hydrogen gas (H2).
4 KO2 + 2 H2O + 4 CO2 4 KHCO3 + 3 O2 1.86 moles of O2 were produced.Now, How many molecules of O2 does this number of moles represent.
Choose one of the non-heme based oxygen transport proteins (i.e. not hemoglobin or myoglobin). Sketch the oxygen binding site environment
Calculate the molar mass of the unknown gas. (remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0L
How many grams of water can be cooled from 34°C to 11°C by the evaporation of 85 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g-K.)
At the equivalence point of the titration of formic acid by NaOH, the pH of the solution is around 8 - 10. What would be a good indicator
Calculate the wavelength of each of the following frequencies of electromagnetic radiation. 1105 kHz (typical frequency for AM radio broadcasting)
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