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The concentration of silicon in an iron-silicon alloy is 0.45 wt%. What is the concentration in kilograms of silicon per cubic meter of alloy?
During a lab experiment, we were to determine the relative level of saturation by adding, drop by drop, a solution of bromine in cyclohexane to oil and a fat, individually. However, the color that is supposed to be retained due to unreacted bromin..
Give the structures of two different aromatic compounds that could be used to synthesize benzene-1,2-dicarboxyclic acid
What minimum mass of succimer (C4H6O4S2) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 , that total blood volume is 5.0 L , and that one mole of succimer binds one mole of lead.
How do you write and balance this chemical equation a mixture of benzoic acid (C7H6O2 or C6H5COOH) and 4-t-butylphenol (CH3)3CC6H4OH
The pKa of one of the hydrogens that is attached to one of the nitrogens of the purine guanine is 9.7. If guanine is in a solution that has a pH of 10.2, then what is the net charge of the molecule at this pH. Enter your answer as a decimal to two..
carbon monoxide binds to hemoglobin 140 times more strongly than oxygen does. what does this tell you about the
Calculate the theoretical yield of aspirin obtained when 2.0 g of salicylic acid and 5.0 mL of acetic anhydride (density = 1.08 g/mL) 2. if 1.9 g of asprin were obtained in this experiment, what would be the percent yield
a sample of sugar d-ribose c5h10o5 of mass 0.727g was placed in a calorimeter and ignited in the presence of excess
Assume the Pacific Ocean has a surface area of 1.7 x 108 km2 and an average depth of 3900 m. Calculate the volume of water in the ocean in liters
Calculate the pH at the equivalence point in titrating 0.010 M solutions of each of the following with 0.081 M NaOH. (b) hypochlorous acid (HClO), Ka = 3e-08 pH = _?_ It's not 8.3
a student weighs out ten thousands grams of magnesium sulphate from a bottlethe sample was 5.720 g . after heating the
Choose the answer which lists the atoms Pb, Ga, Ti, Br, and Sn in order of increasing effective nuclear charge experienced by the electrons in the n = 3 electron shell.
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