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An HCl solution has been prepared by diluting 300.00mL of concentrated HCl (which is about 12.0 M) to 20L with water. Calculate the approximate molarity of the HCl solution.
ammonium carbonate decomposes as followsnh4co2nh2--gt 2nh3g co2starting with only the solid it is found that at 40c
Calculate the Ka of an unknown monoprotic acid. When 15 mL of the acid was titrated with 28 mL of 0.15 M sodium hydroxide the equivalence point was reached at a pH of 8.48.
A pure sample of the solvent phenol has a freezing point of 40.85 degrees C. a 0.414 molal solution of isopropyl alcohol in phenol was observed to have a freezing point of 38.02 degrees C.
Assume that patient blood lead levels are 0.600 mg/L that total blood volume is 5.0 L and that 1 mol of succimer binds 1 mol of lead.
A copper refinery produces a copper ingot weighing 171 lb. If the copper is drawn into wire whose diameter is 8.25 mm, how many feet of copper can be obtained from the ingot?
How many nucleotides are needed to code for a polypeptide with eleven amino acids
Calculate the molar mass for each of the following. Express your answer to four significant figures and include the appropriate units. Cl2 C3H6O3 Mg3(PO4)2 AlF3 C2H4Cl2 SnCl2
Which of the following conclusions is correct for the change in entropy for this reaction. You must find all of the correct answers.
How many grams of Cu(OH)2 can be produced from the reaction of 0.500g Cu with 30.0 mL of 3.0M NaOH? what is the limiting reagent?
Explain PH and Biochemistry, Determine the weight in grams of sodium dihydrogen phosphate (M.W.138.01) and disodium hydrogen phosphate (M.W 141.98) needed to prepare 1L of a standard buffer at pH 7.00, with a total phosphate concentration of 0.100..
Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP.
A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.738 V. If the silver-silver chloride electrode is replaced with a saturated calome..
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