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marc anderson

marc a.

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During the experiment you obtained the following measurements: pH of the buffered solution: 6.84 Solution color $A_{453nm}$ $A_{616nm}$ Yellow 0.198 0.032 Blue 0.067 0.513 Green 0.139 0.182 Calculate the $pK_a$ of the bromothymol blue (HBB) and report it to 2 decimal places.

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you're pulling a sled up a hill at constant speed with a rope parallel to the incline. The sled has a mass of 15 kg. There is friction and the force of kinetic friction on the sled 40N. you move the sled a horizontal distance of 20 m and a vertical distance of 8m. It takes 50s to go up the hill. Find work done on the sled gravity ,normal force and friction. How much power is being applied to the sled

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how do you know how many hydrogen atoms are in a formula

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An aqueous solution is in equilibrium with solid CaF2 (Ksp = 5.3 x 10-9). Adding solid Ca(NO3)2 to this solution will cause Group of answer choices Precipitation of more CaF2 An increase in the Ksp of CaF2 More CaF2 to dissolve No change in the [F-] of solution

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Bilaterians have a third germ layer called: _____ Group of answer choices gastrulation neuroderm endoderm ectoderm mesoderm

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Test your learning There can be many types of connective tissue at any one location in the body. Can you identify the types of connective tissue seen in this region of the leg? Adipose Blood Bone Cartilage Dense irregular Dense regular Check Answer Which of the following are functions of the connective tissue?

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Consider the flow theory of exchange rate determination. Explain the role

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3. Show how to prepare each \(\alpha,\beta\)-unsaturated ketone by an aldol reaction followed by dehydration of the aldol product. OTBS CHO CHO 4. Propose structures for A and B. OH CrO$_3$ $\rightarrow$ A (C$_{11}$H$_{18}$O$_2$) EtO$^-$Na$^+$ $\rightarrow$ B (C$_{11}$H$_{16}$O) pyridine EtOH OH (racemic)

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Apoptosis can be prevented by the Bax-induced release of cytochrome c into the cytosol from mitochondria. Group of answer choices True False

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frictionless pulley with a radius of 13 cm. It has a(n) 12 kg mass on the left and a(n) 6.6 kg mass on the right, both hanging freely. Initially their center of masses are a vertical distance 1.7 m apart. The acceleration of gravity is 9.8 m/s². 12 kg 1.7 m 6.6 kg 13 cm \omega At what rate are the two masses accelerating when they pass each other? Answer in units of m/s².

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