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A solution containing 0.2 g/mL of a pure R enantiomer in a 1 dm polarimeter rotates plane polarized light by +3 degrees. What is the specific rotation of the R isomer? What will be the specific rotation of its S isomer?
Each component contains different metals and minerals. The pebbles and shells can easily be separated from the sand. Which term or terms could be used to describe this sample of sand?
Calculate the pH of the final solution after 250 mL of a 0.157 mol dm-3 solution of HCl is added to 500 mL of a 0.103 mol dm-3 solution of NaCN (Ka HCN = 6.2 × 10-10).
A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.
What is the pH of a buffer that results when 0.50 mole of Na3PO4 is mixed with 0.75 mole of HCl and diluted with water to 1.00 L? The acid dissociation constants for phosphoric acid
start with 4-cyclopentylphenol and react with NaOH, CH3I, NBS, heat show each step to get the final product.
Consider the cell prepared with 2.0 M Cd2+ and 0.45 M Zn2+ solutions: Zn(s) + Cd2+(aq) --- Zn2+(aq) + Cd(s)
Determine the empirical formula for each substance.
The heat of vaporization of water is 44.0 {rm kJ/mol}. Calculate the quantity of energy released when enough water vapor condenses to form 0.42 inches of rain over an area of one square mile.
80.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar
Given the standard free energies of formation, what is the value of for the cell reaction?
Write reactions and equilibrium relationships for the first four complexes formed between cadium(II) and chloride
Calculate the wavelength of the light emitted when an electron in a hydrogen atom makes each of the following transitions as well as state the region of the electromagnetic spectrum (infrared, visible, ultraviolet, etc.)
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