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Question: A 1.5 gram sample of a gaseous hydrocarbon has a volume of 820 ml when measured at 227 degrees Celcius and 2.50 atm. Which of the following is the formulas for the gas?
A: CH4
B: C2H6
C: C3H8
D: C4H10
E: C5H12
How much energy is evolved during the reaction of 32.5 g B2H6 and 72.5 g Cl2? Given: B2H6(g) +6Cl2 (g)---->2BCl3 (g) + 6HCl (g) DH -1396kj
If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex
A 0.221 g sample of sodium carbonate was titrated to a pale yellow endpoint with HCl. What is the concentration of HCl
Using the ?H for the reaction of NaOH + HCl and the reaction of NaOH + NH4Cl How do you calculate an enthalpy change for reaction of HCl + NH3?
What is the pH during the titration of 25.00mL of 0.10M HAc(aq) using .10M NaOH(aq) as the titrant, after the addition of 10.0, 25.0, and 30.0ml of titrant.
How many ATPs are synthesized for every cytoplasmic NADH that participates in the glycerophosphate shuttle in insect flight muscle?
When alkyl halides react, rearrangements are likely to occur in which of the following types of reactions? A) SN1 B) SN2 C) E1 D) Both SN1 and E2 E) Both SN1 and E1
Draw the Lewis structure of CH2N2 in its best resonance form. The sigma-bond network is given to you
Using the van der Waals equation of state, what is the pressure of 1.423 mol of helium in a container of volume 5.412 L and a temperature of 25.0 C
Calculate the heat released when 25.0 g of water at 0 degrees C crystallizes to ice at the same temp. The specific heat of water is 1.00 cal/(g *degrees C); the heat of fusion is 80.0 cal/g and the heat of vaporization is 540.0 cal/g
Decide how many of the molecules below can also be both cis and trans ring fused by building models
what is the pressure in millimeters of mercury of 0.0105 mol of helium gas with a volume of 220 ml at a temperature of
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