Yi

This page lists questions and answers that were posted by visitors named Yi.

Questions

The following questions were asked by visitors named Yi.

How do I figure out the limiting reagent for this experiment? Preparation of diphenylacetylene! Step 1:: trans-stilbene + pyridinium hydrobromide perbromide in glacial acetic acid -----> stilbene dibromide Starting weight of trans-stilbene: 2.014g Startin...

Answers

The following answers were posted by visitors named Yi.

a) Fnet = ma F1 + F2 = ma 18.6N + F2 = 2.36(11.4*cos26.7° + 11.4*sin26.7°) F2 = 42.6i + 12.1j b) sqrt(42.6^2 +12.1^2) = 44.3 (N) c) θ = 26.7° + 90° θ = -116.7°

a) Fnet = ma F1 + F2 = ma 18.6N + F2 = 2.36(11.4*cos26.7° + 11.4*sin26.7°) F2 = 42.6i + 12.1j b) sqrt(42.6^2 +12.1^2) = 44.3 (N) c) θ = 26.7° + 180° θ = 206.7° 206.7° - 300° θ = -93.3°

Fg = mg*sinθ - μk*Fn = mg*sinθ - μk*mg*cosθ = mg*(sinθ - μk*cosθ) = 504.1426 (N) a) Vt = sqrt((2*Fg) / (C*P*A)) = 65.6 (m/s) b) dv = (-1/2)*sqrt((2*Fg) / (P*A))*C^(-3/2) dc = -218.8 (m/s)