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Using the standard entropy values: H2(g), S° = +130.6 J mol-1 K-1 I2(s), S° = +116.12 J mol-1 K-1 HI(g), S° = +206.0 J mol-1 K-1 calculate the standard entropy change, DeltaS°, for the reaction: H2(g) + I2(s) ® 2 HI(g) Question 9 options: 1) -40.8 kJ 2) +40.8 kJ 3) -165.3 kJ 4) +165.3 kJ 5) +206.0 kJ
A colored compound or complex ion provides a preliminary indication of the presence of which of the aluminum Group ions? Give the chemical formula
what is analytic
What mass of ammonium chloride should be added to 2.45L of a 0.145M NH3 in order to obtain a buffer with a pH of 9.45
Why is it possible to add up different balanced chemical equations to form a particular chemical equation and calculate its Kc from multiplying the Kc values of the different equations?
a solution composed of 50 ethanol etoh 10 methanol meoh and 40 water h2o is fed at the rate of 100 kghr into a
What is the sum of the simplest whole number ratio coefficients in the balanced chemical equation for complete combustion of C3H8.
Describe the reaction and mechanism of solvolysis reaction of tert-butyl bromide in ethanol.
at 30 km above the earths surface (roughly in the middle of the statosphere) the pressure is roughly 0.013 atm and the gas density is 3.74 x 10^23 molecules/m^3 assuming N2 is represetative of the stratosphere using the collisional diameter inform..
hydrogen sulfide ion hs- is a weaker base than ammonia nh3. when ammonia reacts with hydrosulfuric acid h2s what
What must californium-250 be bombarded with to produce lawrencium-257 and 4 neutrons? a. carbon-8 b. boron-8 c. fluorine-11 d. boron-11
Assuming that the 3s- and 3p-orbitals will form molecular orbitals similar to those formed when 2s- and 2p-orbitals interact, according to molecular orbital theory
Calculate the Ecell for the reaction below when [Zn2+] = 1.00M, [H+] = 1.00 x 10-6 M and PH2 = 1.00 atm Zn (s) + 2H+ ----> Zn2+ + H2 (g) a.+0.76 V b. + 0.64 V c. + 0.41V d. + 0.053 V e. + 1.12 V
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