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If 22.50mL of 0.100 M nitric acid is required to neutralize 25.0 mL of barium hydroxide solution, what is the molar concentration of the base? HNO3 (aq) + Ba(OH)2(aq) --->Ba(NO3)2 (aq) + H2O (l)
What is the molecular formula of a product obtained by adding fluorine to 1-butene and then cracking out
DNA is thought to be the chemical compound responsible for the process of heredity. A sample of DNA was found to have density 1.10 g/cm^3 and its molecular weight was estimated to be 3.04 x 10^8 g. What is the average volume occupied by one DNA mo..
Predict whether the following reactions will occur or not. For those that do occur complete and balance the equation. Write N.R. for those that do not occur. Include all subscripts (e.g., (S), (aq), etc.)
Suppose we doubled the volume of the solution (by adding more solvent) while keeping the quantities of the reactants constant in a SN1 reaction.
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.154 M in sodium chloride and 0.030 M in magnesium sulfate? Assume complete dissociation for electrolytes.
Water in a glass tube that contains grease or oil residue displays a flat meniscus, whereas water in a clean glass tube displays a concave meniscus. Explain your answer fully.
Choose one of the non-heme based oxygen transport proteins (i.e. not hemoglobin or myoglobin). Sketch the oxygen binding site environment, indicating the likely mode by which oxygen coordinates
Recrystallization from 95% ethanol gave yellow crystals. What is the overall mechanism for this reaction including all arrows, the identification of the electrophile and nucleophile, and all charges?
A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes. What is the equation for the equation for the overall cell reaction. What is the emf generated by the cell under standard conditions
someone investigating the properties of solutions containing carbonate ions prepared a solution containing 5.639g
which is known to change the activation energy of the process by 1.5 kJ. What will the rate of the reaction be with the catalyst when [A] = 0.0757 M at 315 K? Assume that the Arrhenius factor for this reaction has been determined to be 0.673 s-1.
The reaction of magnesium metal with HCl yields hydrogen gas and magnesium chloride. What is the volume, in liters, of the gas formed at 736 torr and 18 oC from 4.49 g of Mg in excess HCl?
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