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What ions remain in the solution after 23.7 mL of 0.204 M sodium sulfate are mixed with 30.6 mL of 0.130 M calcium nitrate? Assume the reaction goes to completion.
1.calculate the mass of oxygen dissolved in a 70.0 l aquarium maintained at room temperature. the total pressure is
In another experiment it was determined that for each mole of hydrocarbon, 7 moles of oxygen gas are consumed and 5 moles of CO2 gas and 3 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K
We know Pro can interrupt an a-helix, chemically, do you think it will cause any unusual problems in the determination of, angiotension II sequences? Explain.
When 0.633 L of Ar at 1.20 atm and 227°C is mixed with 0.185 L of O2 at 501 torr and 127°C in a 400 mL flask at 27°C, what is the pressure in the flask
Resonance Forms of the Enolate Ion of Acetophenone, In the stepwise trihalogenation process of a methyl group in acetophenone the methyl group in intitially deprotonated
Find another example of a solid-phase reagent that is used in organic synthesis, and give an example of a specific reaction where it has been used. In this case, what advantage does the solid-phase reagent provide over the analogous solution-phase..
Calorimetry is a method used to measure enthalpy, or heat, changes that occur during chemical processes. Two common calorimeters are constant-pressure calorimeters and constant-volume (or "bomb") calorimeters
a cylindrical glass tube 13.0 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 107.5g. Calculate the inner diameter of the tube in centimeters.
What is the number (actual count) of [H+] in 10 mLs of water at a specific pH (like pH 9, 7, 2 etc.)
Problem- If 38.5 mL of lead (II) nitrate solution reacts completely with excess sodium iodide solution to yield a 0.628 g of precipitate, what is the molarity of lead (II) ion in the original solution
If 0.214 mol of argon gas occupies a volume of 652 mL at a particular temperature and pressure, what volume would 0.375 mol of argon occupy under the same conditions?
Describe the chemical and physical properties of seawater. Describe two different methods used to convert seawater into drinkable water.
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