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Write a balanced equation for the reaction between aqueous solutions of calcium chloride (CaCl2) and sodium carbonate, Na2CO3, Write the net ionic equation for this reaction.
what features would you expect to be different when comparing the ir spectra of serine and tyrosine? provide at least
Compare and contrast the nitrogen requirements of microorganisms and higher forms of life, describing how their respective requirements are met
What hydroxide concentration is required to, from a 2.50 X 10- 2 M solution of AliS04h, lower the AI3+ concentration in the foregoing solution to 2.00 X 10- 7 M
Based on position in the periodic table and electron configuration, arrange these elements in order of decreasing Ei1. Rank the elements from highest to lowest ionization energy
What is the significance of high pressure used in HPLC?
The cell constant of a conductivity sell is equal l/A. The resistance of the NaCl solution is found to be 254 Ω . Using the same sell the resistance of the 0.05 M KCL is found to be 467 Ω . Estimate the NaCl concentration if the molar conductivity ..
Calculate the pH of a solution made by mixing 50.0 mL of 0.100 M NaCN with 11.82 mL of 0.438 M HClO4 . pKa for HCN = 9.21
what mass of magnesium sulfate is dissolved in 400.ml of a 0.800 m solution of magnesium sulfate
The sample is not completely thermally decomposed in the procedure. Will the mole ratio of CaO to CO2 be too high or too low? Explain
For an addition polymerization, the initiation is the slow step (1st order in initiator,R'2------->2R'.). The propagation step is fast with the rate=k1[R.][monomer]. The termination step is also fast with rate=k2[R.]^2.
How can you visually demonstrate that a substance is insoluble or just slightly soluble. Some solid remains in both cases.
The half-life of U238 is 4.5X10^9 years. How many disintegrations occur in 1 minute for a 10 mg sample of this element
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