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Describe what data you need to collect and how you will use it to identify the metal cations present in the sparklers.
What mass of precipitate forms when 124.5 mL of 0.660 M NaOH is added to 517 mL of a solution that contains 10.9 g aluminum sulfate per liter?
Calculate the product of 3.214 x 10-6 and 2.6x10-3. Answer using the correct number of significant figures.
If the coal is burned in a power plant that uses 1800 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
Hospital X-ray generators emit X rays with wavelength of about 15.0 nanometers (nm), where 1nm=10^9-m. What is the energy of a photon of the X rays
The reaction is first order, and the rate constant is 6.70x10^-4 s^-1. If the initial concentration of cyclopropane is .0577 M, what is the molarity of it after 37.2 minutes?
What is the pH of this solution? What is the concentration of the molecular species H3PO4?
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 84.02 g was dissolved in water. This acid sample was neutralized by the addition of 536.0 mL of 0.125 M NaOH.
A standard solution was made when 1.276g of pure copper wire (MM= 63.546g/mol) was weighed, dissolved in concentrated HNO3, and diluted to 1.00x102mL. What is the concentration of the stock solution
A person is exposed for three days to identical amounts of two different nuclides that emit positrons of roughly equal energy. The half-life of nuclide A is 18.5 days and the half-life of nuclide B is 255 days.
A 2.89 g sample of solid calcium carbide (CaC2) reacted with water to produce acetylene gas (C2H2) and aqueous calcium hydroxide.
Calculate the of a solution prepared by mixing equal volumes of 0.21 methylamine (CH3NH2, Kb = 3.7 x 10^-4 ) and 0.61 M CH3NH3Cl.
Write a reaction for the formation of a peptide bond between alanine and serine. React the amino group of alanine with carboxyl group of serine. Remember that there are 2 products in this reaction.
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