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For each pair of substances, circle the one with higher molar entropy (So). Justify each choice with a brief explanation.
Circle the substance with greater molar entropy. Why is its entropy greater?
(a) NaNO3(s) / NaNO3(aq)
(b) PCl3(g) / PCl5 (g)
(c) CH3CH2CH2CH3(g) / SO2(g)
(d) Br2(g) / F2(g)
(e) Fe(s) at 125 K / Fe(s) at 298 K
disubstituted alkene was formed in which the olefinic protons exhibited a vicinal coupling of 9.0Hz in the H NMR. What is the stereochemistry
It is well known that the element magnesium has three naturally occurring isotopes. Mg-24 represents 79.0% of all magnesium atoms, Mg-25 accounts for 10.0%, and Mg-26 is the remaining 11.0%. If you have 254. atoms of magnesium, how many should be ..
When CO(g) (9.035 mol) and 144.6 grams of O2(g) in a 220.0 L reaction vessel at 608.0 °C are allowed to come to equilibrium the mixture contains 0.02021 mol/L of CO2(g). What is the concentration (mol/L) of CO(g)? 2CO(g)+O2(g) = 2CO2(g)
A major oil company has used a gasoline additive called MMT to boos the octane rating of its gasoline. What is the emperical formula of MMT if it is 49.5% C, 3.2% H, 22.0% O, and 25.2% Mn.
what is the ph when 0.005 moles of hcl is added to 0.100l of a buffer solution that is 0.100m in ch3co2h and 0.100m
1) What is the filtration rate expected for this system? 2)How significant is the medium resistance?
Find the formal concentration of the acid in each phase when 100 mL of 0.10 M aqueous acid is extracted with 35 mL of octanol at (a) pH 4.00 and (b) pH 9.00.
If 10.00 mL of 0.050 M KI solution is mixed with 40.0mL of other reagents what would be the the diluted concentration of KI
Show the Newman projection of chair-cyclohexane. From this structure, why is this the lowest energy-conformation
3230 J of heat are added to a 29.7 g sample of iron at 29 degree C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g. K
Calculate the pH at the equivalence point in the titration of 50 ml of 0.10 M methylamine with a 0.20 M HCl solution.
If 4.00 g of the unknown compound contained 0.133 mol of and 0.267 mol of H , how many moles of oxygen, O , were in the sample?
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