Tutor profile: Mallory A.
Subject: Organic Chemistry
What type of carbocation is the most stable?
Answer: tertiary Tertiary carbocations are more stable than secondary ones due to an effect known as hyperconjugation. A neighboring C-H bond can donate some of its electron density into the vacant p-orbital of a carbocation thus making it more stable than other types of carbocations.
What would the VSEPR geometry of methane be?
Methane's chemical formula is CH4. CH4 has four atoms that surround the central atom and zero lone pairs of electrons. Therefore, the shape of methane will be tetrahedral. Answer: tetrahedral
Subject: Basic Chemistry
30 mL of 1.00 M NaOH is needed to titrate 60 mL of an HCl solution. At the equivalence point, what is the concentration of HCl?
Answer: 0.5 M NaOH and HCl are, respectively, a strong base and a strong acid. Therefore, M1V1=M2V2 can be used to calculate the molarity of HCl. M(acid)V(acid) = M(base)V(base) M(acid) * 60 mL = 1.00 M * 30 mL M(acid) = 0.5 M
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