Theory and ExamplesCircumference of a circle Set up an

Principles of General Chemistry 2
Problem 3P Define Physical Property and chemical property. Identify each type of property in the following statements: (a) Yellow-green chlorine gas attack silvery sodium metal to form white crystal of sodium chloride(table salt). (b) A magnet separates a mixture of black iron shavings and white sand

Principles of General Chemistry 2
Calculate each of the following quantities: (a) Mass in grams of \(8.42 \mathrm{~mol}\) of chromium(III) sulfate decahydrate (b) Mass in grams of \(1.83 \times 10^{24}\) molecules of dichlorine heptaoxide (c) Number of moles and formula units in \(6.2 \mathrm{~g}\) of lithium sulfate (d) Numb

Organic Chemistry 7
a. Which of the following compounds have enantiotopic hydrogens? b. Which have diastereotopic hydrogens?

Chemistry 11
Calculate the mass of each of the following: (a) a sphere of gold with a radius of 10.0 cm [the volume of a sphere with a radius r is \(V=(4 / 3) \pi r^{3}\); the density of gold = \(19.3\mathrm{\ g}/\mathrm{cm}^3\)], (b) a cube of platinum of edge length 0.040 mm (the density of platinum = \(21.4\ma

Campbell Biology: Concepts & Connections 7
How is photosynthesis similar in C4 plants and CAM plants? a. In both cases, the light reactions and the Calvin cycle are separated in both time and location. b. Both types of plants make sugar without the Calvin cycle. c. In both cases, rubisco is not used to fix carbon initially. d. Both types of p

Campbell Biology: Concepts & Connections 7
Ants carry dead ants out of the anthill and dump them on a trash pile. If a live ant is painted with a chemical from dead ants, other ants repeatedly carry it, kicking and struggling, to the trash pile, until the substance wears off. Which of the following best explains this behavior? a. The chemical

Chemistry for today : general, organic, and biochemistry 9
A sample of starch is found to have a molecular weight of \(2.80 \times 10^{5} \mathrm{u}\). How many glucose units are present in a molecule of the starch?

Biochemistry 9
Suppose that a polymer of glucose with alternating \(\alpha(1 \rightarrow 4)\) and \(\beta(1 \rightarrow 4)\) glycosidic linkages has just been discovered. Draw a Haworth projection for a repeating tetramer (two repeating dimers) of such a polysaccharide. Would you expect this polymer to have primari