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- 4. Which of the following arises from π to π* transitions? Select all that apply.Calculate ΔH°rxn using the following information: SO2I2(g) + 2 H2O(l) → 2 HI(g) + H2SO4(l) ΔH°rxn = ? ΔH°f (kJ/mol) SO2I2(g) -264 H2O(l) -286 HI(g) -12 H2SO4(l) -814The numerator has 4 sf and denominator 2.65 3sf and 4.3 x 10^-2 has 2 sf but this is addition, could explain me this part, I am confused
- Calculate the value of × by applying approximation method and check if the approximation is valid (remember 5% rule). Validity must be clearly stated yes or no' to state an response. x^2/0.345=1.515 x 10^-3deltaGf values: - H2(g) Gf = 0 - Fe2O3(s) Gf = -742.2 - Fe(s) Gf = 0 - H2O(g) Gf = -288.6The fifth shell has 5 sub-shells. Select one: True False
- For each of the following, determine the value of terms of delta H2 in terms of delta H1. A+B--->2C, delta H1 1/2A+1/2B--->C, delta H2=?The ΔH°f for H2O(g) is -241.8kJ/mol. Find the ΔH°rxn (in kJ/mol) of 2H2O(g) → 2H2(g) + O2(g) Choices: A. 483.6 B. -241.8 C. 241.8 D. -483.6is this a Z or E? and why is it.